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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 4SQ
Textbook Problem
99 views

Homologous chromosomes _______.

  1. a. are inherited from two parents
  2. b. are sister-chromatids
  3. c. are different in size and in length

Summary Introduction

Introduction:

A couple of one maternal and one paternal chromosome that undergo pairing upon meiosis are called homologous chromosomes. They are with same length and size but with different DNA sequence as they are inherited from two different parents but they have the same genes in the same order in their chromosomal arms.

Explanation of Solution

Reason for the correct statement:

Two chromosomes that are very similar in size, length and centromere are called homologous chromosomes. Every diploid organism has two of each chromosome. Out of the two, one is inherited from the father and the other from mother. During meiosis, they undergo pairing and produce a combination of the two.

Option a. is given as “are inherited from two parents”. All homologous chromosomes are inherited from two parents. Hence, option. a is the correct answer.

Reasons for the incorrect statements:

Option b...

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