Question Detail

BIO 101 BIO 101 Past Questions Objective Question
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Question

What happens during nondisjunction?
Options
A A chromosome gets deleted
B Chromosomes fail to separate during meiosis
Correct Answer
C Mutation occurs in mRNA
D Genes cross over incorrectly
Correct Answer

Option B is the correct answer.

Detailed Explanation

Nondisjunction is the failure of homologous chromosomes or sister chromatids to separate properly during anaphase of meiosis I or II. This results in gametes with an abnormal number of chromosomes.

Hint

It's a failure of chromosome separation.

Question Info

Course: BIO 101
Topic: BIO 101 Past Questions
Type: Objective
Difficulty: Not specified
Question 927 of 2556
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