Q. 2$n$=16 is a primary spermatocyte, which is in metaphase of first meiotic division. What shall be the total number of chromatids in each of the secondary spermatocyte?

A) 32
B) 8
C) 16
D) 24
Explanation

In spermatogenesis, primary spermatocyte undergoes meiosis-I and as a result of which two haploid secondary spermatocytes formed. Thus, for the given case secondary spermatocyte possesses 8 chromosomes, i.e., $n$=8 and 16 chromatids because each chromosome divides along its length into two chromatids.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.

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