Leydig cells:
1. | Are present in seminiferous tubules and secrete androgens |
2. | Are present in seminiferous tubules and help in the maturation of sperms |
3. | Are present in interstitial space and secrete androgens |
4. | Are present in interstitial space and help in the maturation of sperms |
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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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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 first menstruation begins at puberty and is called as:
1. | Menarche | 2. | Menopause |
3. | Thelarche | 4. | Pubarche |
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Oogenesis is initiated:
1. | During the fetal life | 2. | Just before birth |
3. | Just after birth | 4. | At puberty |
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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 |
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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 |
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