Question Detail

BIO 101 Last Min Prep Objective Question
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Question

A cell in mitotic prophase contains 20 chromosomes. How many chromatids does it contain altogether? a. 40 b. 20 c. 20 or 40, depending on when during prophase you look d. 10
Options
A 40
Correct Answer
B 20
C 20 or 40, depending on when during prophase you look
D 10
Correct Answer

Option A is the correct answer.

Detailed Explanation

During prophase of mitosis, DNA has already been replicated in interphase. Each chromosome consists of two sister chromatids. Therefore, if there are 20 chromosomes, there are 20 x 2 = 40 chromatids.

Hint

Each chromosome is made of two copies.

Question Info

Course: BIO 101
Topic: Last Min Prep
Type: Objective
Difficulty: Not specified
Question 2102 of 2556
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