Q. No.
In humans, at the end of the first meiotic division, the male germs cells differentiate into the:
1. primary spermatocytes
2. secondary spermatocytes
3. spermatids
4. spermatogonia
1. primary spermatocytes
2. secondary spermatocytes
3. spermatids
4. spermatogonia
Which part of the ovary in mammals acts as an endocrine gland after ovulation?
| 1. | Graafian follicle | 2. | Stroma |
| 3. | Germinal epithelium | 4. | Vitelline membrane |
Withdrawal of which of the following hormones is the immediate cause of menstruation?
1. Estrogen
2. FSH
3. FSH-RH
4. Progesterone
The part of the Fallopian tube closest to the ovary is:
1. Isthmus
2. Infundibulum
3. Cervix
4. Ampulla
Extrusion of the second polar body from the egg nucleus occurs:
| 1. | simultaneously with the first cleavage |
| 2. | after entry of sperm but before fertilization |
| 3. | after fertilization |
| 4. | before entry of sperm into the ovum |
Select the correct sequence for the transport of sperm cells in the male reproductive system:
| 1. | Testis → Epididymis → Vasa efferentia → Vas deferens → Ejaculatory duct → Inguinal canal → Urethra → Urethral meatus |
| 2. | Testis → Epididymis → Vasa efferentia → Rete testis → Inguinal canal → Urethra |
| 3. | Seminiferous tubules → Rete testis → Vasa efferentia → Epididymus → Vas deferens → Ejaculatory duct → Urethra → Urethral meatus |
| 4. | Seminiferous tubules → Vasa efferentia → Epididymis → Inguinal canal → Urethra |
Which one of the following is the correct match of the events occurring during the menstrual cycle?
| 1. | Ovulation - LH and FSH attain peak level and sharp fall in the secretion of progesterone |
| 2. | Proliferative phase - Rapid regeneration of myometrium and maturation of Graafian follicle |
| 3. | Development of corpus luteum - Secretory phase and increased secretion of progesterone |
| 4. | Menstruation - Breakdown of myometrium and ovum not fertilized |
The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis is:
| 1. | spermatocyte-spermatogonia- spermatid-sperms |
| 2. | spermatogonia-spermatocyte-spermatid-sperms |
| 3. | spermatid-spermatocyte-spermatogonia-sperms |
| 4. | spermatogonia-spermatid-spermatocyte-sperms |
Given below is a diagrammatic sketch of a portion of human male reproductive system. Select the correct set of the names of the parts labelled A, B, C, D:
|
(a) |
Ureter |
Prostate |
Seminal vesicle |
Bulbourethral gland |
|
(b) |
Vas deferens |
Seminal vesicle |
Prostate |
Bulbourethral gland |
|
(c) |
Vas deferens |
Seminal vesicle trial gland |
Bulboure |
Prostate |
|
(d) |
Ureter |
Seminal vesicle |
Prostate |
Bulbourethral gland |
1. (a)
2. (b)
3. (c)
4. (d)
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