EBK ESSENTIALS OF GENETICS
EBK ESSENTIALS OF GENETICS
9th Edition
ISBN: 9780134190068
Author: Palladino
Publisher: YUZU
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Chapter 2, Problem 12PDQ
Summary Introduction

To review:

The process of meiosis requires homologs to pair but the process of mitosis does not require pairing of homologs.

Introduction:

Mitosis is a type of cell divisionthattakes placein somatic cells of an organism to produce two identical daughter cells and diploid chromosomal number ‘2n’. Meiosis is another type of cell divisionthattakes place in the germ-line cells of an organism to produce four gametes. In the process of meiosis, the diploid number of chromosomes reduces to become haploid (n).

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Students have asked these similar questions
Given the end results of the two types of cell division, why is it necessary for homologs to pair during meiosis and not desirable for them to pair during mitosis?
Assuming all of the chromosomes present during Meiosis II are shown in the figure above, how many chromosomes (counting homologous pairs as two chromosomes) does a cell from this organism have immediately after fertilization?
If an organism has 15 pairs of homologous chromosomes, how many chromosomes will each daughter cell have after telophase of mitosis? In this same organism, how many chromosomes will each daughter cell have after telophase II of meiosis?

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EBK ESSENTIALS OF GENETICS

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Mitochondrial mutations; Author: Useful Genetics;https://www.youtube.com/watch?v=GvgXe-3RJeU;License: CC-BY