Which of the following is/are (a) reason(s) why crossing over between two genes on the same chromosome may not result in genetic recombination? 1. No allelic variation between homologous pairs. 2. Crossing over only occurs between sister chromatids. 3. Non-random alignment of homologs during meiosis I. Group of answer choices
Which of the following is/are (a) reason(s) why crossing over between two genes on the same chromosome may not result in genetic recombination? 1. No allelic variation between homologous pairs. 2. Crossing over only occurs between sister chromatids. 3. Non-random alignment of homologs during meiosis I. Group of answer choices
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Which of the following is/are (a) reason(s) why crossing over between two genes on the same chromosome may not result in genetic recombination?
1. No allelic variation between homologous pairs.
2. Crossing over only occurs between sister chromatids.
3. Non-random alignment of homologs during meiosis I.
1. No allelic variation between homologous pairs.
2. Crossing over only occurs between sister chromatids.
3. Non-random alignment of homologs during meiosis I.
Group of answer choices
Expert Solution
Step 1
Introduction:- crossing over is the exchange of genetic material ( segments of chromosomes ) between homologous chromosome ,but it can also occurs between two genes on same chromosome .It leads to genetic variation by exchange of material in parental chromosome through meiosis during the formation of gametes . It leads to the formation of recombinants and their recombination frequency depends on the distance between two genes , present on the chromosome .
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