In male reproductive system, sphincters are present in

Given below are certain groups of terms. In each group, the first pair indicates a relationship between the two terms. Rewrite and complete the second pair on a similar basis.

Widening of hips: Oestrogen:: Deepening of voice in males: _____.

State the main functions of the following:

Seminal Vesicles.

What is the correct sequence of sperm formation ?

Choose the ODD one out from the following terms given and name the CATEGORY to which the others belong:

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:

Mention the exact location of the following

Testis.

Identify the cells represented as $\mathrm{P},\mathrm{Q},\mathrm{R}$ and $\mathrm{S}$ in the given schematic representation of spermatogenesis.