Gametogenesis: spermatogenesis and oogenesis

Match List - I with List - II.

List - I: A. Head; B. Middle piece; C. Acrosome; D. Tail

List - II: I. Enzymes; II. Sperm motility; III. Energy; IV. Genetic material

Choose the correct answer from the options given below :

Consider the following :

A. The reductive division for the human female gametogenesis starts earlier than that of the male gametogenesis.

B. The gap between the first meiotic division and the second meiotic division is much shorter for males compared to females.

C. The first polar body is associated with the formation of the primary oocyte.

D. Luteinizing Hormone (LH) surge leads to disintegration of the endometrium and onset of menstrual bleeding.

Choose the correct answer from the options given below :

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R :

Assertion A : FSH acts upon ovarian follicles in female and Leydig cells in male.

Reason R : Growing ovarian follicles secrete estrogen in female while interstitial cells secrete androgen in male human being.

In the light of the above statements, choose the correct answer from the options given below :

Identify the correct option (A), (B), (C), (D) with respect to spermatogenesis.

[Flow chart: GnRH -> LH -> (B) -> Androgens -> Formation of spermatids; GnRH -> (A) -> (C) -> Factors -> (D)]

At which stage of life the oogenesis process is initiated ?

Which of the following statements are true for spermatogenesis but do not hold true for Oogenesis ?

(a) It results in the formation of haploid gametes

(b) Differentiation of gamete occurs after the completion of meiosis

(c) Meiosis occurs continuously in a mitotically dividing stem cell population

(d) It is controlled by the Luteinising hormone (LH) and Follicle Stimulating Hormone (FSH) secreted by the anterior pituitary

(e) It is initiated at puberty

Choose the most appropriate answer from the options given below :

Given below are two statements :

Statement I :

The release of sperms into the seminiferous tubules is called spermiation.

Statement II :

Spermiogenesis is the process of formation of sperms from spermatogonia.

In the light of the above statements, choose the most appropriate answer from the options given below :

Extrusion of second polar body from egg nucleus occurs :

The difference between spermiogenesis and spermiation is