13. Give 2 reasons why is meiosis a source of genetic variability for organisms? 1. 2. 14. How many chromosomes will a cell that is 2n=6 have? Draw metaphase and anaphase of mitosis in a cell that is 2n 6. Metaphase Anaphase 15. Draw chromosomes at metaphase I, metaphase II and anaphase II of meiosis in a cell that is 2n=8. Metaphase I Metaphase II Anaphase II

13. Give 2 reasons why is meiosis a source of genetic variability for organisms? 1. 2. 14. How many chromosomes will a cell that is 2n=6 have? Draw metaphase and anaphase of mitosis in a cell that is 2n 6. Metaphase Anaphase 15. Draw chromosomes at metaphase I, metaphase II and anaphase II of meiosis in a cell that is 2n=8. Metaphase I Metaphase II Anaphase II

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter11: Meiosis: The Cellular Basis Of Sexual Reproduction

Section: Chapter Questions

Problem 7TYK: Metaphase in mitosis is similar to what stage in meiosis? a. prophase I b. prophase II c. metaphase...

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Similar questions

If a muscle cell of atypical organism has 32 chromosomes, how many chromosomes will be in a gamete of that same organism? 8 16 32 64
Figure 13.6 Which of the following statements about nondisjunction is true? Nondisjunction only results in gametes with n+1 or n-1 chromosomes. Nondisjunction occurring during meiosis II results in 50 percent normal gametes. Nondisjunction during meiosis I results in 50 percent normal gametes. Nondisjunction always results in four different kinds of gametes.
Explain how the random alignment of homologous chromosomes during metaphase I contributes to the variation in gametes produced by meiosis.
Consider an animal with six pairs of chromosomes; one set of six chromosomes is from this animals male parent, and the homologous set of six chromosomes is from this animals female parent. How many combinations of chromosomes are possible in the gametes of an individual of this species if we look onlyat independent assortment of chromosomes, disregarding the effect of crossing-over?
Metaphase in mitosis is similar to what stage in meiosis? a. prophase I b. prophase II c. metaphase I d. metaphase II e. crossing-over
Chiasmata: a. form during metaphase II of meiosis. b. occur between two nonhomologous chromosomes. c. represent chromosomes independently assorting. d. are sites of DNA exchange between homologous chromatids. e. ensure the resulting cells are identical to the parent cell.
1. How does meiosis I differ from mitosis? What about meiosis II from mitosis? difference between meiosis l and mitosis? difference between meiosis ll and mitosis? 2. What is the relationship between meiosis and fertilization? 3. If cell division during gametogenesis is non-meiotic, what is its consequence to the future generations of diploid organisms? 4. How does non-disjunction in meiosis lead to numerical chromosomal aberration?
1. What is meiosis?2. What specific cells in the body divide through this process?3. Meiosis involves two successive cell divisions. Which of the two is mitotic in nature? Why?4. What particular event in meiosis results to genetic variation? Why?5. Is there a possibility that a problem may occur at any stage of meiosis? If so, what is it and how does itaffect the organism?6. The cells produced after meiosis are haploid, how do these cells restore or maintain the normalchromosome number of the species?7. Why do you think mitosis and meiosis important in the life cycle of an organism?
1)Discusses why Meiosis I is referred to as reduction division and why Meiosis II is essentially like Mitosis. 2)Discusses where problems are likely to occur in Meiosis and what these problems could lead to.
28. ...... the process where portions of homologous chronosomes exchange segments occurs in A. Meiotic overlap, tetrad B. Clonal exchange, meiosis I C. Homologous exchange, mitosis D. Crossing over, meiosis II E. Independent assortment, meiosis II F. Crossing over, meiosis I
1. A diploid organism has the genotype I1I2V1V2 Y1Y2 on different chromosomes. Diagram only these three pairs of chromosomes to represent: Any correct mitotic phase, label the alleles. Any correct meiotic phase, label the alleles. Compare the results of mitosis with the results of meiosis in terms of the number of chromosomes and the genotype of the cells produced.
2) A. Explain how polyribosomes form. B. Why might you expect the insertion of 3 DNA base pairs to be less disruptive than th deletion of a single base pair? C. Compare and contrast mitosis and meiosis with respect to their genetic outcomes? D. What are the possible consequences of non-disjunction during cell division? E. How does meiosis increase genetic diversity in populations?