Consider a cell in which nondisjunction occurs for all chromosomes during meiosis I. What would be the result of this event? Multiple Choice two diploid gametes two haploid gametes and one aneuploid gamete with an extra set of chromosomes four aneuploid gametes four haploid gametes

Consider a cell in which nondisjunction occurs for all chromosomes during meiosis I. What would be the result of this event? Multiple Choice two diploid gametes two haploid gametes and one aneuploid gamete with an extra set of chromosomes four aneuploid gametes four haploid gametes

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter7: The Cellular Basis Of Inheritance

Section: Chapter Questions

Problem 6RQ: At which stage of meiosis are sister chromatids separated from each other? a. prophase I b. prophase...

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Concept explainers

Oogenesis

The formation of the ovum (mature female gamete) from undifferentiated germ cells is called oogenesis. This process takes place in the ovaries (female gonads). Oogenesis consists of three stages known as the multiplication phase, growth phase, and maturation phase.

Cell Division

Cell division involves the formation of new daughter cells from the parent cells. It is a part of the cell cycle that takes place in both prokaryotic and eukaryotic organisms. Cell division is required for three main reasons:

Question

Consider a cell in which nondisjunction occurs for all chromosomes during meiosis I. What would be the result of this event?
Multiple Choice
two diploid gametes
two haploid gametes and one aneuploid gamete with an extra set of chromosomes
four aneuploid gametes
four haploid gametes

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Step 1: definition of disjunction of chromosome

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Step 2: Explanation of the chromosomal nondisjunction result in meiosis l stage

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Step 3: Explanation of incorrect options

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Step 4: Conclusion

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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.
The chromosome constitution number of this individual is 2=6. This drawing represents: a. mitotic metaphase. b. meiotic metaphase I. c. meiotic metaphase II. d. a gamete. e. sixnonhomologous chromosomes.
Match the phase of cell division with the following diagrams. In these cells, 2n = 4. a. anaphase of meiosis I b. interphase of mitosis c. metaphase of mitosis d. metaphase of meiosis I e. metaphase of meiosis II
Compare meiotic anaphase I with meiotic anaphase II. Which meiotic anaphase is most similar to the mitotic anaphase?
A cell has a diploid number of 6 (2n = 6). a. Draw the cell in metaphase of meiosis I. b. Draw the cell in metaphase of mitosis. c. How many chromosomes are present in a daughter cell after meiosis I? d. How many chromatids are present in a daughter cell after meiosis II? e. How many chromosomes are present in a daughter cell after mitosis? f. How many pairs of homologous chromosomes are visible in the cell in metaphase of meiosis I?
A cell (2n = 4) has undergone cell division. Daughter cells have the following chromosome content. Has this cell undergone mitosis, meiosis I, or meiosis II?
Tetraploidy may result from: a. lack of cytokinesis in meiosis II b. nondisjunction in meiosis I c. lack of cytokinesis in mitosis d. nondisjunction in mitosis in the early embryo e. none of these
After telophase Il of meiosis, the chromosomal makeup of each daughter cell is: Practia diploid, and the chromosomes are each composed of a single chromatid. O diploid, and the chromosomes are each composed of two chromatids. O haploid, and the chromosomes are each composed of a single chromatid. O haploid, and the chromosomes are each composed of two chromatids.
After telophase I of meiosis, the chromosomal makeup of cach daughter cell is: ) diploid, and the chromosomes are cach composed of a single chromatid. diplaid, and the chromosomes are cach compased of two chromatids. O haploid, and the chromosomes are cach composed of a single chromatid. haploid, and the chromosomes are cach composed of two chromatids.
in the experiment of following chromosomal dna mvement througgh meiosis, why. do you use non-sister chromatids to demobstrate crossing over? what combinatiobns of alleles could result from a crossover between BD and bd chromosomes? Identify two ways that meiosis contributes to genetic recombination. Why is it necessary to reduce the number of chromosomes in gametes, but not in other cell?
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eiosis mod e correct order. 4 Compare the models of the two processes. List all of the differences you can see between meiosis and mitosis below. Northern Virginia Community Collego 188 I BIO 142 Human Anatomy and Physiology II