Question

Describe the events of spermatogenesis with the help of a schematic representation.

Answer 1

(i) Spermatogenesis starts at the age of puberty

(ii) Spermatogonia are present on the inside wall of semniferous tubules multiply by mitotic divisions and increase in numbers.

(iii) Each spermatogonium is diploid and contain 46 chromosomes

(iv) Some of spermatogomia called primary spermato cytes undergo meiosis I to produce 2 equal haploid cells called - secondary spermatocytes with 23 chromosomes each

(v) Secondary spermatocyte undergo second meiotic division to produce 4 equal haploid spermatids.

(vi) Spermatid later transform into spermatozoa.

 



 

 

Answer 2

Answer:

) Spermatogenesis starts at the age of puberty

(ii) Spermatogonia are present on the inside wall of semniferous tubules multiply by mitotic divisions and increase in numbers.

(iii) Each spermatogonium is diploid and contain 46 chromosomes

(iv) Some of spermatogomia called primary spermato cytes undergo meiosis I to produce 2 equal haploid cells called - secondary spermatocytes with 23 chromosomes each

(v) Secondary spermatocyte undergo second meiotic division to produce 4 equal haploid spermatids.

(vi) Spermatid later transform into spermatozoa