Q. No.Leydig cells synthesize androgens under the direct influence of:
1.
FSH
2.
LH
3.
FSH and LH
4.
GnRH
For normal fertility, what percent of the sperm in ejaculate must exhibit normal morphology?
| 1. | 20 | 2. | 30 |
| 3. | 40 | 4. | 60 |
The correct sequence of mammalian mammary gland ducts beginning from the alveoli would be:
| 1. | Mammary tubules → Mammary ducts → Mammary ampulla → Lactiferous ducts |
| 2. | Lactiferous ducts → Mammary ducts → Mammary ampulla → Mammary tubules |
| 3. | Lactiferous ducts → Mammary ampulla → Mammary ducts → Mammary tubules |
| 4. | Mammary tubules → Mammary ampulla → Mammary ducts → Lactiferous ducts |
The spermatids are transformed into spermatozoa by a process called:
| 1. | Spermiation | 2. | Spermatocytogenesis |
| 3. | Spermiogenesis | 4. | Spermatolysis |
The first menstruation begins at puberty and is called as:
| 1. | Menarche | 2. | Menopause |
| 3. | Thelarche | 4. | Pubarche |
Oogenesis is initiated:
| 1. | During the fetal life | 2. | Just before birth |
| 3. | Just after birth | 4. | At puberty |
The correct sequence of male sex accessory ducts beginning from testis would be:
| 1. | rete testis → vasa efferentia → epididymis → vas deferens |
| 2. | rete testis → vas deferens → vasa efferentia → epididymis |
| 3. | vas deferens → vasa efferentia → epididymis → rete testis |
| 4. | vasa efferentia → vasa deferens → epididymis → rete testis |
Which hormone is mainly secreted by the developing follicles during the proliferative phase of the menstrual cycle?
| 1. | LH | 2. | FSH |
| 3. | Progesterone | 4. | Estrogen |
In the absence of fertilization, corpus luteum:
| 1. | Stops secreting progesterone but increases the secretion of estrogen |
| 2. | Stops secreting estrogen but increases the secretion of progesterone |
| 3. | Increases the secretion of both progesterone and estrogen |
| 4. | Degenerates |
What happens when a sperm enters the cytoplasm of the secondary oocyte?
1. Release of first polar body
2. Completion of meiosis II
3. Degeneration of polar bodies
4. Dissolution of zona pellucida
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