1. | At the time of insemination |
2. | At puberty |
3. | At the time of fusion of a sperm with an ovum |
4. | Just before birth |
1. | In spermiogenesis, spermatids are formed, while in spermiation, spermatozoa are formed. |
2. | Spermatogonia are diploid and primary spermatocytes are haploid. |
3. | Testes descend into the scrotum after birth but before puberty while ovaries do not descend at all. |
4. | The Infundibulum of fallopian tube possesses fimbriae while fertilization occurs in the ampulla of the fallopian tube. |
I: | acts at the Leydig cells and stimulates synthesis and secretion of androgens. |
II: | acts on the Sertoli cells and stimulates secretion of some factors which help in the process of spermiogenesis. |
1. | Only I is correct | 2. | Only II is correct |
3. | Both I and II are correct | 4. | Both I and II are incorrect |
Column I | Column II | ||
A. | Sertoli cells | P. | Secretion of androgens |
B. | Leydig cells | Q. | Spermiogenesis |
C. | Uterine Myometrium | R. | Implantation |
D. | Uterine Endometrium | S. | Parturition |
A | B | C | D | |
1. | P | R | Q | S |
2. | R | S | P | Q |
3. | Q | P | S | R |
4. | S | Q | R | P |
1. | By the end of the second month |
2. | During the third month |
3. | By the end of the fourth month |
4. | During the fifth month |
1. | Foetal hypothalamus |
2. | Maternal pituitary |
3. | Fully developed foetus and placenta |
4. | Maternal hypothalamus |