Question Detail

BIO 101 Last Min Prep Objective Question

Question

Reduction in chromosome number occurs at the end of: a. Telophase II b. Telophase I c. Anaphase II d. Anaphase I
Options
A Telophase II
B Telophase I
Correct Answer
C Anaphase II
D Anaphase I
Correct Answer

Option B is the correct answer.

Detailed Explanation

The chromosome number is reduced from diploid to haploid by the end of telophase I. At this point, each daughter nucleus has one complete set of chromosomes (though each chromosome is still duplicated). Telophase II separates sister chromatids but doesn't change the chromosome number further.

Hint

After the first division, the cells are already haploid.

Question Info