Q. No.Seminal plasma in humans is rich in:
1.
fructose, calcium and certain enzymes
2.
fructose and calcium but has no enzymes
3.
glucose and certain enzymes but has no calcium
4.
fructose and certain enzymes but poor in calcium
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)
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 |
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 |
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 |
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