Q. No.The division of primary oocyte results in:
1.
unequal cells – a smaller haploid secondary oocyte and a larger diploid polar body
2.
unequal cells – a larger haploid secondary oocyte and a smaller haploid polar body
3.
unequal cells – a smaller diploid secondary oocyte and a larger haploid polar body
4.
equal cells – a haploid secondary oocyte and a haploid polar body
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Leydig cells synthesize androgens under the direct influence of:
| 1. | FSH | 2. | LH |
| 3. | FSH and LH | 4. | GnRH |
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For normal fertility, what percent of the sperm in ejaculate must exhibit normal morphology?
| 1. | 20 | 2. | 30 |
| 3. | 40 | 4. | 60 |
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What causes the onset of puberty in males?
| 1. | Increase in secretion of testosterone by the testis |
| 2. | Decrease in the secretion of testosterone by the testis |
| 3. | Increase in secretion of GnRH by the hypothalamus |
| 4. | Decrease in the secretion of GnRH by the hypothalamus |
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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 |
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The spermatids are transformed into spermatozoa by a process called:
| 1. | Spermiation | 2. | Spermatocytogenesis |
| 3. | Spermiogenesis | 4. | Spermatolysis |
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The second polar body is formed as a result of:
1. Reductional division in primary oocyte
2. Reductional division in secondary oocyte
3. Equational division in secondary oocyte
4. Equational division in primary oocyte
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Which of the following will carry 46 chromosomes?
| 1. | Sperms | 2. | Spermatids |
| 3. | Secondary spermatocytes | 4. | Primary spermatocytes |
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The first menstruation begins at puberty and is called as:
| 1. | Menarche | 2. | Menopause |
| 3. | Thelarche | 4. | Pubarche |
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