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Q. No.Leydig cells synthesize androgens under the direct influence of:
1.
FSH
2.
LH
3.
FSH and LH
4.
GnRH
Subtopic: Spermiogenesis/Sperm Structure/Hormonal Regulation |
79%
From NCERT
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Identify the part that helps in the collection of the ovum after ovulation:
| 1. | 4 | 2. | 5 |
| 3. | 6 | 4. | 7 |
Subtopic: Female Reproductive System-1 |
87%
From NCERT
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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 |
Subtopic: Spermiogenesis/Sperm Structure/Hormonal Regulation |
71%
From NCERT
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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 |
Subtopic: Mammary Gland & Lactation |
79%
From NCERT
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The spermatids are transformed into spermatozoa by a process called:
| 1. | Spermiation | 2. | Spermatocytogenesis |
| 3. | Spermiogenesis | 4. | Spermatolysis |
Subtopic: Spermiogenesis/Sperm Structure/Hormonal Regulation |
81%
From NCERT
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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
Subtopic: Fertilization |
From NCERT
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Which of the following will carry 46 chromosomes?
| 1. | Sperms | 2. | Spermatids |
| 3. | Secondary spermatocytes | 4. | Primary spermatocytes |
Subtopic: Seminiferous Tubules & Spermatogenesis |
90%
From NCERT
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The first menstruation begins at puberty and is called as:
| 1. | Menarche | 2. | Menopause |
| 3. | Thelarche | 4. | Pubarche |
Subtopic: Menstrual Cycle: Pre Ovulatory Phase | Menstrual Cycle: Luteal Phase |
97%
From NCERT
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Ovaries are the primary sex organs in human females because they:
| I: | Produce the female gamete. |
| II: | Produce the hormone that regulates the development of secondary sexual characters. |
| 1. | Both I and II | 2. | Only I |
| 3. | Only II | 4. | None |
Subtopic: Ovary | Menstrual Cycle: Pre Ovulatory Phase |
86%
From NCERT
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Between childhood and puberty, the ovaries will have follicles containing:
| 1. | Primary oocyte | 2. | Secondary oocyte |
| 3. | Ootid | 4. | Ovum |
Subtopic: oogenesis |
85%
From NCERT
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