LIVE Course for free

Rated by 1 million+ students
Get app now
0 votes
in Biology by (56.7k points)
closed by

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

(b) Write two differences between spermatogenesis and oogenesis.

1 Answer

+1 vote
by (52.3k points)
selected by
Best answer



S.No Spermatogenesis Oogenesis
(i) It is the process of formation of haploid spermatozoa from diploid male germ cells of the testes. It is the process of formation of haploid ova from the gamete mother cells (oogonia) in the ovary
(ii) It occurs in testes. It occurs in ovaries.
(iii) Spermatogonia changes to primary spermatocyte. Oogonia changes to primary oocyte.
(iv) A primary spermatocyte divides to form two secondary spermatocytes by meiosis I. A primary oocyte divides by meiosis I to form one secondary oocyte and a polar body
(v) A secondary spermatocyte divides to form two spermatids by meiosis II. A secondary oocyte divides by meiosis II to form ovum and a polar body
(vi) No polar body is formed. Polar bodies are formed.
(vii) Four spermatozoa are produced from one primary spermatocyte. One ovum/egg is produced from 1 primary oocyte.

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.