Oogenesis is initiated:
1. | During the fetal life | 2. | Just before birth |
3. | Just after birth | 4. | At puberty |
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What happens to the majority of the follicles during the phase from birth to puberty?
1. | They get invested by multiple layers of granulosa cells |
2. | They enlarge in size and then get dormant |
3. | They undergo atresia or degeneration |
4. | They cluster together at one end of the ovary |
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What is the usual number of primary follicles in both ovaries of a female at puberty?
1. | 60000 – 80000 | 2. | 120000 – 160000 |
3. | 1 million to 2 million | 4. | About 7 million |
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The cavity of a tertiary follicle is called as:
1. | Antrum | 2. | Cumulus |
3. | Vitelline space | 4. | Sinusoid |
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In the beginning, the newly formed secondary follicles contain:
1. | Primary oocyte | 2. | Secondary oocyte |
3. | Ootid | 4. | Mature ovum |
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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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Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): | It is important that the secondary oocyte aquires almost all of the cytoplasm from the primary oocyte. |
Reason (R): | This increases its chances of sustaining the early embryo should the oocyte be fertilized. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |
The final mature follicle is called:
1. | Primordial follicle | 2. | Primary follicle |
3. | Vesicular follicle | 4. | Graafian follicle |
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Zona pellucida is a membrane surrounding:
1. | Secondary oocyte | 2. | Secondary follicle |
3. | Corona Radiata | 4. | Trophoblast cells |
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What is released at ovulation?
1. | Primary oocyte arrested at meiosis I |
2. | Primary oocyte arrested at meiosis II |
3. | Secondary oocyte arrested at meiosis I |
4. | Secondary oocyte arrested at meiosis II |
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