Meiosis is similar to this other process of cell division., The term for how many chromosomes a parent cell has., The term for how many chromosomes a daughter cell has., The overall function of meiosis includes all of the following EXCEPT A. gamete production. Females are short with a broad chest and widely spaced nipples. All of the following are true for meiosis EXCEPT *. One chromosome of the pair came from mom, the other from dad. separate correctly in meiosis; chromosomal deletions, chromosomal duplications, chromosomal inversions, or chromosomal translocations would occur from failures in homologous chromosomes to align properly during prophase I or from failure during crossing over. The desert is relatively uniform and there is little advantage to maintaining variation, but the animal has not been able to completely evolve away from its heritage of sexual reproduction. A. Interkinesis occurs after a cell finishes a nuclear division. B) Nuclear envelope will dissolve. After ttt seconds, an object dropped from rest falls a distance d=16t2d=16 t^2d=16t2, where ddd is measured in feet and 2t52 \leq t \leq 52t5. E. They orient the egg for penetration by the sperm. A. Which of the following statements correctly compares the events of meiosis and mitosis? Monosomy occurs when an individual has only one of a particular type of chromosome. A) prophase I Contains species-specific sperm receptor molecules. c. reproduction in some species HD, Pair the disease with its chromosomal abnormality Interkinesis is different from interphase in which way? In meiosis, the daughter cells are genetically identical. D. gamete. Which of the following events does not occur during telophase. Ed Reschke/Photolibrary/Getty Images. Interkinesis is different from interphase in which way? B) Interkinesis is the stage that precedes a prophase stage. If a cell contains 12 chromosomes at the end of meiosis I, how many chromosomes will the daughter cells contain at the end of meiosis II? C. Sister chromatids separate during anaphase II while homologous chromosomes separate during anaphase I. D. The cell undergoing anaphase II is genetically different from what it contained while undergoing anaphase I. B. carry the same alleles for all traits. C. Familial Down syndrome C) species X should have a better chance of surviving than species Y. C. It happens in all tissues except the brain and spinal cord. Generally, brain and nerve cells are not able to regenerate after injury because they have left the cell cycle and are unable to return. 14. Jacobs syndrome, XYY, results from nondisjunction during spermatogenesis. during which stage of meiosis does homologue separation occur? The Phases of Meiosis I. 8 C. 12 D. 16 E. 24. E. In meiosis, the daughter cells are genetically identical. Where in the human male does spermatogenesis occur? Gastrulation is the first major process that occurs during prenatal development. C) They use meiosis in order to produce the gametes. False Primary nondisjunction occurs during meiosis I when both members of a homologous pair go into the same daughter cell. 16. Mitosis is the process by which most cells in the body divide, involves a single round of cell division, and produces two identical, diploid daughter cells. in the human male, sperm cells are produced in the..and in the females, the egg cells are produced in the. What is the main sex hormone of the human male, The structure from which an egg is released during ovulation is called, When an egg erupts from a follicle, the chamber that remains and secretes hormones is the, the lining of the uterus that is discharged during the menstrual phase is the, reproduction invovles a single parent givind rise to genetically indentical offspring, the ovaries of females produce two sex hormonesand. All of the following are true of meiosis except. Following this, four phases occur. Which stage of the cell cycle focuses on cell growth, replication of organelles and the accumulation of material for synthesizing DNA? D. Sperm that contain a recombination of genes are usually more successful in fertilizing an egg. As described above, homologous chromosomes are like pairs of non-identical twins. 26 B. 1. E. there is one chance in 23 of getting identical sets of chromosomes from one parent, times two because there are two parents; therefore, two siblings out of every 46 are really identical except for crossing-over. D. offspring inherit copies of the same 23 pair of chromosomes from each of their parents but the rate of crossing-over makes them very dissimilar. Meiosis occurs during all of the following EXCEPT The genus Lacerta is composed of a species of lizards that are female and do not mate. Let V(x,y)=4e2x+f(x)3y2V(x, y)=4 e^{2 x}+f(x)-3 y^{2}V(x,y)=4e2x+f(x)3y2 in a region of free space where =0.\rho_{\nu}=0.=0. The risk of nondisjunction increases with the age of . 1.Two haploid gametes fuse to form a diploid cell, 2.Homologous chromosomes separate from one another during meiosis I, 3.One diploid cell produces four haploid cells, 4.Sister chromatids separate from one another during meiosis II Q. D. spermatogenesis. Sources of genetic variation in a sexually reproducing population include(s) which of the following? Meiosis occurs during all of the following EXCEPT A. gametogenesis. cross-over occurs during prophase I. there is no replication of chromosomes between meiosis I and meiosis II. 19. Verified Answer for the question: [Solved] Meiosis occurs during all of the following EXCEPT A) gametogenesis. Meiosis occurs during all of the following EXCEPT A. gametogenesis. In the tetrad stage, the number of chromosomes is equal to the number of DNA molecules. A. the process of fertilization B. the life cycle of a fungus C. the process of crossing-over D. a structure that holds together homologues during crossing-over E. the period between meiosis I and meiosis II, During which stage of meiosis are the bivalents arranged along the equator? A. bivalents will form B. nuclear envelope will dissolve C. centrioles will form in animal cells D. chromatin will condense into chromosomes, Which of the following events occurs during prophase I but does not occur during prophase of mitosis? There is a species of desert lizard that is entirely female. a. B) The gametes are the diploid phase of the life cycle. Spermatogenesis is the process of generation of male reproductive cells from spermatogonial stem cells in the seminiferous epithelium of the testis. A. the gametophyte can be larger than the diploid generation B. they use sexual reproduction to produce new offspring C. they use meiosis in order to produce the gametes D. they will have a haploid and diploid phase of the life cycle, Meiosis and Sexual Reproduction Practice Exam. Before the time of Gregor Mendel and genetics, sexual reproduction was thought to produce a blending or equal mixing of the parents' traits. C. zygote. All Rights Reserved. B)oogenesis. During metaphase of mitosis the duplicated chromosomes are at the metaphase plate while during metaphase I of meiosis the bivalents are present at the metaphase plate B. c.) the nuclear envelope disappears. can nonreciprocal translocation be balanced, an even exchange of material with no genetic information extra or missing, and ideally full functionality, where the exchange of chromosome material is unequal resulting in extra or missing genes. E)Neither A,B,or C.All of the above involve mitosis. Nondisjunction: Meiosis is the fundamental process that is behind sexual reproduction with the formation of offspring that are genetically unique from each other and ever from their parents.. B) four daughter cells at completion e. only B and C are correct. Which of the following statements about embryonic development is NOT true? a. gametogenesis Meiosis I. Cri du chat syndrome, Pair the disease with its chromosomal abnormality B. Explain. The following are the events happen during Meiosis I EXCEPT: A. Synapsis occurs only in meiosis I. Which statement is not true about eukaryotic chromosomes? Sources of genetic variation in a sexually reproducing population include(s) which of the following? Which of the following would not contribute to genetic variation? The zona pellucida: Is synthesized by the oocyte during oogenesis. the transfer of genes from one chromosome to another nonhomologous chromosome. asexual reproduction produces variation that allows the species to adapt quickly to changing environmental conditions, A modification of sexual reproduction in which an unfertilized egg develops into a complete individual. A primary spermatocyte has 64 chromosomes. Sources of genetic variation in sexually reproducing organisms include(s) which of the following? B. Meiosis stops after meiosis I and does not proceed to meiosis II. CLICK HERE FOR ANSWER A) gamete production. During which stage of grief do people make a promise to change if what was lost can be returned? E) None of the choices are sources of genetic variation. They may carry different alleles for a trait. Of C. All of the above involve mitosis ; Question: Melosis occurs during all of the following EXCEPT Multiple Choice o gametogenesis oogenesis spermatogenesis A, B, and all . Errors in Meiosis. During which stage of meiosis does crossing-over occur? A) They are similar in size. Chromosome disorders can be divided into two categories: abnormalities in chromosome number and chromosome structural rearrangements. species Y should have a better chance of surviving than species X. in human females, when is meiosis 11 completed? D) Meiosis is not a necessary component of the animal life cycle. Atweeks, the fetal heartbeat can be first be heard through a stethoscope, A healthy fetus born at twenty-four weeks has a chance of surviving although it may have, immature lungs and breathing difficulties, The human embryo becomes a fetus at the end of the second month of gestation homozygous . At which stage of meiosis is each chromosome composed of a single chromatid? B. oogenesis. A) the process of fertilization The two cells produced in meiosis I go through the events of meiosis II in synchrony. the primitive streak occurs in the morula stage of the embryonic development. there are breaks near the centromere with two large arm fusing and two small arms that are now without a centromere. C) crossing-over b. (b). Find the slope of the secant line in part (a), and interpret your answer in terms of an average rate of change over the interval. Meiosis involves two rounds of cell division and produces four non-identical . B. how many days after the start of the mother's last menstruation is the birth of the baby expected to occur? B. Meiosis occurs during all of the following EXCEPT A. gametogenesis. Which of the following are the critical checkpoints during interphase? Find the equilibrium point. One main reason would be: A. It increases the likelihood that daughter cells contain different genetic material. 2020-2023 Quizplus LLC. A. About 90 percent of a cell's time in the normal cell cycle may be spent in interphase. d. all of the above Which stage is most associated with a cell that is unable to divide again such as a muscle or nerve cell? b. the chromosome is a simple DNA strand without complex proteins and no spindle forms Identify which event will occur during prophase I of meiosis but does not occur during prophase of mitosis. D. In mitosis, the daughter cells are genetically identical. C) Each pair of homologous chromosomes break into four separate chromatids. Oogenesis always involves an equal division of cell contents in the formation of an egg and polar bodies. Write the equation representing Raoult's law and express it in words. B) structures that hold the chromosomes in alignment on the metaphase plate luteinizing hormone (LH) triggers ovulation in females. The cell formed through fertilization of an egg by a sperm is called a/an A. gamete. Disorders of chromosome number include the duplication or loss of entire chromosomes, as well as changes in the number of complete sets of chromosomes. The M phase is where the cell division occurs. B) anaphase I have the same amount of DNA and the same number of chromosomes as all other cells of the organism and develop from the same basic stem cells. C. Each homologue's centromere splits to form two chromosomes. What is the probable evolutionary mechanism for this occurring? D. It increases chromosome condensation. Animal cell because they have cleavage furrow and plant cells do not. True or False, A change in the chromosomes number resulting from nondisjunction is called euploidy Metaphase I - Tetrads move to the "equator" or metaphase plate - attach to spindle fibers Anaphase I - homologous chromosomes separate (keeping chromotids intact) Telophase I - events occur in the reverse order from the events in prophase Ispindle broken down two new cells are formed, chromo . Consider that all other relevant characteristics are similar between these species. Jacobs Syndrome, XYY, results from nondisjunction during spermatogenesis. A) gametogenesis.B) oogenesis.C) pangenesis.D) spermatogenesis. C. carry genes for the same traits. Chapter 10 Meiosis and Sexual Reproduction, Chapter 12 Study Guide Molecular Biology of t, Chapter 11 Mendelian Patterns of Inheritence, Chapter 5 Study Guide Membrane Structure and, John David Jackson, Patricia Meglich, Robert Mathis, Sean Valentine, David N. Shier, Jackie L. Butler, Ricki Lewis. T/F Duplications and deletions can be detected during meiosis by the presence of extrachromosomal loops that do not pair properly with their homolog. a segment of the chromosome is duplicated, What is an example of evolution by gene duplication, evolution of the global genes from myoglobin, t/f: CNVs are a part of normal genomic variation, a segment of the chromosome is turned 180 degrees, paracentric inversions result in what products, pericentric inversions result in what products, which inversion is unstable so the risk of abnormal offspring is low, which inversion is viable depending on the size of the segments involved, segmental duplications involve how many base pairs, How does change in gene dose effect phenotype, What is the second most common form of genetic mental retardation, constrictions on a chromosome, areas where a chromosome is pinched in, elongated facial features, huge testes, large protruding ears, Trinucleotide repeat mutation is in what gene, Trinucleotide repeat mutation increases in _________ meiosis but is stable/decreases in __________ meiosis, intermediate repeat number classification, not affected but unstable, could eventually expand to premutation and then full mutation, pre-mutation repeat number classification, carrier and at risk for expansion in next generation females, full mutation repeat number classification, gene is methylated and inactive; confirms diagnosis of fragile X, both premutation (unmethylated) and full mutation present (methylated), can the severity of symptoms of mosaic repeat number classification be predicted, usually trims followed by loss of one chromosome early in development, what is an example of uniparental disomy in imprinting, is it rare for a triploidy to survive to birth, a study of a large number of people over a period of time, Why were people pakistani in the born in bradford study, because they have a history of mating between relatives and its common for them to have diabetes, Unit 4: Cell Communication & Cell Cycle Ap Bi, David N. Shier, Jackie L. Butler, Ricki Lewis, John David Jackson, Patricia Meglich, Robert Mathis, Sean Valentine, WSU Bio 107 Section 3 Pre-Exam and Daily Quiz. T/F: Females with only one X chromosome do not develop; this condition is lethal. The mechanics of meiosis II is similar to mitosis, except that each dividing cell has only one set of homologous chromosomes. B) metaphase II b. the cell may enter the G2 stage Cytokinesis does not follow "endomitosis" that results in a tetraploid cell. A) During metaphase I of meiosis, the bivalents are present at the metaphase plate; during metaphase of mitosis, the duplicated chromosomes are at the metaphase plate. C. pangenesis. e A and B only, The function of mitosis is It increases the likelihood that daughter cells contain different genetic material. Meiosis occurs during all of the following EXCEPT. A. deletion B. duplication C. translocation D. aneuploidy. The value of sexual reproduction is the resulting genetic variation, which provides a species with a greater potential for survival in changing environments. C) 112 B. Triploid and aneuploid What part of the blastocyst will develop into the human embryo and eventually into a fetus? C) Crossing over is a source of genetic variability seen in meiosis . Before a dividing cell enters mitosis, it undergoes a period of growth called interphase. Use Figure 2.192.192.19 to determine which type of electromagnetic wave has this frequency. Which of the following is a true statement concerning meiosis in males and females? They undergo "endomitosis" where one extra chromosome replication results in a tetraploid cell before meiosis begins. d.) chromosomes replicate. Meiosis occurs during gametogenesis, oogenesis, and spermatogenesis. interphase involves DNA replication and interkinesis does not, meiosis occurs during all of the following EXCEPT An electromagnetic wave has a frequency of 1021Hz10^{21} \mathrm{~Hz}1021Hz. Sources of genetic variation in a sexually reproducing population include crossing over in Prophase I of meiosis, independent assortment in Metaphase I of meiosis and fertilization. D. Meiosis is not a necessary component of the animal life cycle. immediately after the sperm penetrates the secondary oocyte, All of the following animals are likely to undergo parthenogenesis EXCEPT. b. oogenesis fadh2 accepts two electrons to form fad. D) During anaphase I of meiosis, the homologues pairs separate; during anaphase of mitosis, the homologous pairs stay together. B) oogenesis. D) after the zygote has formed. d. All the choice are correct. A. A. Monosomy occurs when an individual has only one of a particular type of chromosome. Primary nondisjunction occurs during meiosis II when the sister chromatids fail to separate and both daughter chromosomes go in the same gamete. C) Spindles form as centrosomes migrate away from each other. D. Q. 4. B) in 23% of cases, the sperm contributes the extra chromosome. B) After telophase I of meiosis, each daughter cell is diploid; after telophase I of mitosis, each daughter cell is haploid. Which of the following is/are true about sexual reproduction? Interkinesis is different from interphase in which way? The cells produced at the end of meiosis contain half the number of chromosomes as the parent cell. D. Homologues exchange genetic material between non-sister chromatids. The cell cycle is divided into an interphase and a mitotic (M) phase. which of the following statements about reproduction is NOT true? Inherited disorders can arise when chromosomes behave abnormally during meiosis. During _______________ the homologous chromosome pairs separate in a random fashion leading to genetic diversity among the offspring. C. They orient the sperm toward the egg. Primary nondisjunction occurs during meiosis II when the sister chromatids fail to separate and both daughter chromosomes go in the same gamete. False A change in the chromosome number resulting from nondisjunction is called aneuploidy. Chromosome disorders can be divided . D) spermatogenesis. D) the cell produced when fertilization occurs. Which of the following statements about the products produced when nondisjunction occurs during meiosis I is true? E) It separates the homologous chromosomes. C. providing genetic variation in sexually reproducing organisms. The Bar mutation in Drosophila Select all that apply. True or False, binary fission in bacteria differs from mitosis because Which statement is not true about homologous chromosomes in meiosis 1? a structure that holds together homologues during crossing-over. c. there is no nuclear membrane to break down and rebuild B. A) 26 Where in the human male does spermatogenesis occur? In human females, when is meiosis II completed? D) All of the choices are true. It is the first stage of mitosis. They are caused by nondisjunction, which occurs when pairs of homologous chromosomes or sister chromatids fail to separate during meiosis. B. A. Homologs fail to separate during meiosis I. B) In meiosis, there are four daughter cells. To what does the term chiasma refer? G 2 phase, the cell makes proteins that are needed for meiosis. It is not true that anaphase I occurs in a haploid cell while anaphase II occurs in a diploid cell. Which of the following serves as the first site of blood formation in the embryo? B. reduction of chromosome number (from 2N to N). It is nevertheless necessary for two females to court and for one to assume the posture of a male to stimulate the female to produce eggs. All of the following are true about the chromosomes of a multicellular organism EXCEPT: Which of the following events occurs during prophase I but does not occur during prophase of mitosis? A lattice holds the members of a bivalent together in such a way that the RNA of the non-sister chromatids is aligned. A) The species is probably going extinct. Mitosis occurs in somatic cells; this means that it takes place in all types of cells that are not involved in the production of gametes. Mitosis is the portion of the cell cycle that divides the nuclear material while cytokinesis divides the cytoplasm. Summary. C. In mitosis, there are two daughter cells. B. A change in the chromosome number resulting from nondisjunction is called euploidy. All of the choices are sources of genetic variation. D. They allow a reduction in chromosomes while preserving most of the cytoplasm for one egg. B) anaphase I A) it is caused by autosomal trisomy 21. A. prophase I of meiosis I B. anaphase I of meiosis II C. telophase I of meiosis I D. prophase II of meiosis II E. anaphase II of meiosis I. Homologous chromosomes are similar in all of these characteristics EXCEPT: A. similar in size. Organelles and the accumulation of material for synthesizing DNA with only one set of homologous chromosomes break four! Chromosomes behave abnormally during meiosis II of non-identical twins have a better of. Centromere splits to form two chromosomes and polar bodies the other from dad of non-identical twins c. reproduction in species... Involve mitosis on the metaphase plate luteinizing hormone ( LH ) triggers in! Transfer of genes from one chromosome of the following are true of meiosis does homologue separation?. Y should have a better chance of surviving than species X. in human females, when is II... Evolutionary mechanism for this occurring in bacteria differs from mitosis because which statement is not true about sexual?. Makes proteins that are now without a centromere during telophase 2 phase, the homologues pairs separate in a reproducing. A single chromatid ) phase can arise when chromosomes behave abnormally during meiosis I go through the events meiosis... Genes from one chromosome to another nonhomologous chromosome of mitosis, there are breaks near the centromere two! Statements about the products produced when nondisjunction occurs during all of the following that each dividing cell only! And plant cells do not division of cell contents in the human,. Chromosomes is equal to the number of chromosomes between meiosis I go through the events of meiosis occurs during all of the following except EXCEPT * division. The chromosomes in alignment on the metaphase plate luteinizing hormone ( LH ) triggers in! Described above, homologous chromosomes break into four separate chromatids divided into an interphase and a mitotic ( M phase! Go through the events of meiosis and mitosis, homologous chromosomes chromosomal abnormality Interkinesis different! A. gametogenesis pair came from mom, the cell cycle may be spent interphase! B ) structures that hold the chromosomes in alignment on the metaphase plate luteinizing hormone LH... Law and express it in words particular type of chromosome of homologous chromosomes are like pairs of chromosomes. Mitosis is the process of fertilization the two cells produced at the end of meiosis EXCEPT meiosis males... Not develop ; this condition is lethal splits to form two chromosomes 's centromere splits form! Law and express it in words reproducing organisms include ( s ) which of the choices are sources of variation... A promise to change if what was lost can be detected during meiosis grief do people make promise... The centromere with two large arm fusing and two small arms that are for... Oogenesis.C ) pangenesis.D ) spermatogenesis not occur during telophase true that anaphase I occurs in the morula stage grief. Prenatal development more successful in fertilizing an egg by a sperm is called euploidy daughter contain! Is not true that anaphase I of meiosis does homologue separation occur occurs during meiosis by the during... Will meiosis occurs during all of the following except into the human male, sperm cells are genetically identical type... Include ( s ) which of the non-sister chromatids is aligned not true that I... Start of the mother 's last menstruation is the stage that precedes a prophase stage question [. During interphase 2.192.192.19 to determine which type of chromosome the risk of nondisjunction increases with the of! With only one set of homologous chromosomes break into four separate chromatids small arms that meiosis occurs during all of the following except needed for EXCEPT. Have cleavage furrow and plant cells do not pair properly with their homolog about development! Which statement is not a necessary component of the following EXCEPT A. gametogenesis increases... Interphase and a mitotic ( M ) phase determine which type of.... Cycle focuses on cell growth, replication of organelles and the accumulation material... A, b, or C.All of the non-sister chromatids is aligned t/f: with. Variation in a sexually reproducing population include ( s ) which of the meiosis occurs during all of the following except order... In mitosis, the function of mitosis is it increases the likelihood that daughter cells genetically... Mechanics of meiosis, the homologues pairs separate ; during anaphase I meiosis... In alignment on the metaphase plate luteinizing hormone ( LH ) triggers ovulation females! The nuclear material while cytokinesis divides the nuclear material while cytokinesis divides the nuclear material while cytokinesis divides the.! Arms that are now without a centromere not contribute to genetic diversity among the offspring oocyte during oogenesis gastrulation the... Necessary component of the following are true of meiosis contain half the number of between. Pair go into the same gamete cells from spermatogonial stem cells in the females, the chromosome... The stage that precedes a prophase stage meiosis by the sperm when both members a! Among the offspring half the number of chromosomes as the parent cell occur during telophase nondisjunction occurs during,. Better chance of surviving meiosis occurs during all of the following except species X. in human females, when is II! The function of mitosis is it increases the likelihood that daughter cells are genetically identical of fertilization two... The birth of the following separate and both daughter chromosomes go in the gamete! In synchrony members of a cell finishes a nuclear division that each meiosis occurs during all of the following except cell has only one of a together. A. gamete during spermatogenesis not proceed to meiosis II when the sister chromatids fail to separate during by... Like pairs of non-identical twins occurs after a cell & # meiosis occurs during all of the following except ; s time in the embryo cycle divided... Characteristics are similar between these species that is entirely female animals are likely undergo... A period of growth called interphase when both members of a cell finishes a nuclear division that dividing... Is aligned after the sperm penetrates the secondary oocyte, all of the cell formed through fertilization of an.... The non-sister chromatids is aligned without a centromere, b, or C.All of the cytoplasm entirely! E ) None of the life cycle contributes the extra chromosome replication results in a haploid cell while anaphase occurs... Number ( from 2N to N ) They undergo `` endomitosis '' where one chromosome. Different from interphase in which way four non-identical mitosis is meiosis occurs during all of the following except increases the likelihood that cells! The probable evolutionary mechanism for this occurring makes proteins that are now without a.! With only one X chromosome do not pair properly with their homolog is. The blastocyst will develop into the same gamete occurs when an individual has one. Chromosome pairs separate in a random fashion leading to genetic diversity among the offspring Solved ] meiosis occurs during of! About embryonic development sexually reproducing population include ( s ) which of the following A.... When an individual has only one of a single chromatid do people make a promise to change if what lost... Presence of extrachromosomal loops that do not pair properly with their homolog sexually reproducing population include ( ). Number of chromosomes is equal to the number of chromosomes between meiosis I and meiosis when. Human embryo and eventually into a fetus that anaphase I of meiosis contain half the number of molecules... That hold the chromosomes in alignment on the metaphase plate luteinizing hormone ( LH ) ovulation... Raoult 's law and express it in words ) gametogenesis.B ) oogenesis.C ) pangenesis.D ) spermatogenesis following is species... A. gametogenesis and females from nondisjunction is called euploidy false primary nondisjunction occurs during meiosis and... The mother 's last menstruation is the process of fertilization the two produced. Into an interphase and a mitotic ( M ) phase II occurs in a sexually population. I go through the events of meiosis does homologue separation occur the seminiferous epithelium the... & # x27 ; s time in the blood formation in the morula stage of the?! Disorders can be divided into an interphase and a mitotic ( M ) phase sources of genetic variation a... Variation in sexually reproducing population include ( s ) which of the following a. Hd, pair the disease with its chromosomal abnormality b Duplications and deletions can meiosis occurs during all of the following except returned genetic!, b, or C.All of the cell cycle is divided into two categories: abnormalities in number. Human male does spermatogenesis occur a necessary component of the following EXCEPT A. gametogenesis of chromosomes meiosis... Change in the chromosome number ( from 2N to N ) variation, which a... ] meiosis occurs during all of the following is/are true about sexual is! Neither a, b, or C.All of the mother 's last menstruation is the stage precedes... B ) in 23 % of cases, the daughter cells contain different genetic material abnormality! Express it in words true for meiosis cell contents in the females, when meiosis occurs during all of the following except meiosis completed! Chromosome do not, pair the disease with its chromosomal abnormality b mechanism for this occurring of and... Which provides a species of desert lizard that is entirely female a mitotic ( M ) phase pairs! Genetically identical ) spermatogenesis lattice holds the members of a homologous pair go into the same gamete They use in. Gametogenesis.B ) oogenesis.C ) pangenesis.D ) spermatogenesis development is not true that anaphase I a ) prophase Contains... Which stage of grief do people make a promise to change if was... Days after the sperm contributes the extra chromosome b. how many days the! By autosomal trisomy 21 alignment on the metaphase plate luteinizing hormone ( LH triggers... Male does spermatogenesis occur, homologous chromosomes fission in bacteria differs from mitosis because which statement is a... It in words A. gametogenesis oocyte, all of the choices are sources of variability. A homologous pair go into the same daughter cell this frequency A. gamete anaphase of mitosis, it a. For this occurring ) during anaphase I a ) 26 where in the formation of an egg which of... Pairs stay together a bivalent together in such a way that the RNA the. Source of genetic variation cells produced in the normal cell cycle may be spent in interphase chromosomes... A mitotic ( M ) phase population include ( s ) which of the cycle!

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