NEETZoologyHuman Reproduction
Match List-I with List-II regarding the cells of gametogenesis and their chromosome numbers in humans. List-I List-II A. Primary spermatocyte I. 23 chromosomes B. Secondary oocyte II. 46 chromosomes C. Spermatid D. Oogonia Choose the correct answer from the options given below:
Options
- AA-II, B-I, C-I, D-II
- BA-I, B-II, C-I, D-II
- CA-II, B-I, C-II, D-I
- DA-I, B-I, C-II, D-II
Correct answer
A. A-II, B-I, C-I, D-II
Step-by-step solution
Primary spermatocytes are diploid cells formed by the differentiation of spermatogonia, thus containing 46 chromosomes. Secondary oocytes are formed after the completion of Meiosis I (a reductional division), so they are haploid and contain 23 chromosomes. Spermatids are formed after Meiosis II and are haploid, containing 23 chromosomes. Oogonia are the diploid mother cells in the ovary, containing 46 chromosomes. Answer: A-II, B-I, C-I, D-II