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Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
Publisher: Cengage Learning
ISBN: 9781337408332

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Chapter
Section
BuyFindarrow_forward

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
Publisher: Cengage Learning
ISBN: 9781337408332
Chapter 11, Problem 10SQ
Textbook Problem
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After mitosis the chromosome number of a descendant cell is ______ the parent cell's.

  1. a. the same as
  2. b. one-half of
  3. c. rearranged compared to
  4. d. double that of

Summary Introduction

Introduction: Mitosis is a mechanism of cell division that occurs in every cell that maintains the chromosome number in a cell. It is otherwise known as equational division, because it maintains the chromosome number exactly the same as that of its parent’s. This mechanism is used by many minor organisms for their multiplication.

Explanation of Solution

Reason for the correct statement:

During mitosis, the parent cells divide to produce many new daughter cells with the same number of chromosomes. It only aims at producing many new copies of the parent cell without changing their genetic information.

After mitosis, the chromosome number of a descendant cell is as same as the parent cell’s. So option a. is the correct answer.

Reasons for the incorrect statements:

Option b. is given as “one half of”. This is not what actually happening during mitosis, rather the number remains the same as their parent’s...

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