Biological Science (6th Edition)
6th Edition
ISBN: 9780321976499
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Emily Taylor, Greg Podgorski, Jeff Carmichael
Publisher: PEARSON
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Chapter 13, Problem 11PIAT
Summary Introduction
To analyze:
The evidence shown in the graphs support the hypothesis that weakened binding between sister chromatids leads to aneuploidy.
Introduction:
Aneuploidy refers to the presence of an abnormal number of chromosomes in the cell. It has been hypothesized that the older women produce more aneuploid eggs because the binding between sister chromatids becomes weaker in oocytes of older women.
Researchers used female mice of different ages as a model for aging in women. They measured the percentage of aneuploid eggs, analyzed chromosomes in meiosis for the amount of cohesin connecting the sister chromatids, and measured the distance between sister kinetochores. The given graphs are shown below:
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Chapter 13 Solutions
Biological Science (6th Edition)
Ch. 13 - CAUTION What are homologous chromosomes? a....Ch. 13 - What is an outcome of genetic recombination? a....Ch. 13 - What proportion of chromosomes in a man's skin...Ch. 13 - Nondisjunction that leads to problems in offspring...Ch. 13 - Explain the relationship between homologous...Ch. 13 - If you followed a woman's cells through meiosis,...Ch. 13 - 7. CAUTION Dogs have 78 chromosomes in their...Ch. 13 - Prob. 8TYUCh. 13 - QUANTITATIVE Meiosisresults in independent...Ch. 13 - 10. PROCESS OF SCIENCE A species of rotifer, a...
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