Question Detail

BIO 101 BIO 101 Past Questions Objective Question
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Question

In which meiotic stage does crossing over most likely occur, and what is its significance?
Options
A Metaphase I – ensures chromosome alignment
B Anaphase II – separates sister chromatids
C Prophase I – increases genetic diversity through exchange of genetic material
Correct Answer
D Telophase I – prepares cells for cytokinesis
Correct Answer

Option C is the correct answer.

Detailed Explanation

Crossing over, the physical exchange of DNA segments between homologous chromosomes, occurs during prophase I and is a major source of genetic variation.

Hint

This event happens while homologous chromosomes are tightly paired.

Question Info

Course: BIO 101
Topic: BIO 101 Past Questions
Type: Objective
Difficulty: Not specified
Question 639 of 2556
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