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In humans, the following structure has 23 chromosomes: - Biology (Theory)

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Question

In humans, the following structure has 23 chromosomes:

Options

  • spermatogonia

  • secondary oocyte

  • oogonia

  • zygote

MCQ
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Solution

Secondary oocyte

Explanation:

In humans, the secondary oocyte has 23 chromosomes because it is a haploid cell formed after the first meiotic division during oogenesis. Spermatogonia and oogonia are diploid with 46 chromosomes, and a zygote has 46 chromosomes, combining chromosomes from both parents. Thus, only the secondary oocyte has 23 chromosomes.

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Chapter 3: Human Reproduction - TEST YOUR PROGRESS [Page 109]

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Nootan Biology [English] Class 12 ISC
Chapter 3 Human Reproduction
TEST YOUR PROGRESS | Q 1. 103. | Page 109
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