NCERT Solutions for Class 12 Biology Chapter 2 Sexual Reproduction in Flowering Plants
Important Board Questions
Sexual Reproduction in Flowering Plants
NCERT Books for Session 2022-2023
CBSE Board and UP Board
Question : 6
What is spermatogenesis? Briefly describe the process of spermatogenesis.
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Spermatogenesis is the process of the production of sperms from the immature germ cells in males. It takes place in seminiferous tubules present inside the testes. During spermatogenesis, a diploid spermatogonium (male germ cell) increases its size to form a diploid primary spermatocyte. This diploid primary spermatocyte undergoes first meiotic division (meiosis I), which is a reductional division to form two equal haploid secondary spermatocytes. Each secondary spermatocyte then undergoes second meiotic division (meiosis II) to form two equal haploid spermatids. Hence, a diploid spermatogonium produces four haploid spermatids. These spermatids are transformed into spermatozoa (sperm) by the process called spermiogenesis.
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