A change in ovum after penetration of sperm is 

1. Formation of first polar body

2. Second meiosis starts

3. First meiosis

4. Formation of second polar body 

Subtopic:  Fertilization: Part 2 | Fertilization |
 67%
From NCERT
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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

Subtopic:  Introduction to Menstrual Cycle: 1 |
 79%
From NCERT
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In the given diagram, identify A, B, C and D respectively:

(1) LH, FSH, Progesterone and Estrogen

(2) FSH, LH, Estrogen and Progesterone

(3) Estrogen, Progesterone, LH and FSH

(4) Progesterone, Estrogen, FSH and LH

Subtopic:  Introduction to Menstrual Cycle: 2 | Introduction to Menstrual Cycle |
 90%
From NCERT
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In the given diagram the part of the female reproductive system that undergoes cyclical changes with changes in the secretion of gonadotropins and gonadal steroids during the menstrual cycle is represented by:

1. A

2. B

3. C

4. D

Subtopic:  Introduction to Menstrual Cycle: 2 | Introduction to Menstrual Cycle |
 92%
From NCERT
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Which of the structures shown in the following diagram contributes the source of nutrition for the sperms ejaculated in the semen?

(1) A

(2) B

(3) C

(4) D

Subtopic:  Male Reproductive Duct System |
 79%
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Phase of menstrual cycle in human that lasts for 7-8 days is

1. Follicular phase

2. Ovulatory phase

3. Luteal phase

4. Menstruation

Subtopic:  Menstrual Cycle: Pre Ovulatory Phase |
 68%
From NCERT
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Which one of the following statements is incorrect about menstrual cycle ?

1. The first menstruation begins at puberty and is called menarche

2. Lack of menstruation may also occur due to some environmental factors like stress, poor health

3. Corpus luteum secretes large amounts of progesterone which is essential for maintenance of endometrium

4. In absence of fertilisation, corpus luteum degenerates in luteal phase and new follicles start developing immediately

Subtopic:  Menstrual Cycle: Luteal Phase |
 80%
From NCERT
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Which of the following groups of hormones produced in women only during pregnancy ?

1. hCG, hPL, relaxin

2. Estrogen, progesterone, hCG

3. Cortisol, prolactin, thyroxine

4. Prolactin. progesterone, hCG

Subtopic:  Embryonic Development till Gastrulation |
 88%
From NCERT
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In the fertile human female, approximately on which day of the menstrual cycle (32 days) does ovulation take place?

1. Day 18

2. Day 14

3. Day 1

4. Day 8

Subtopic:  Menstrual Cycle: Luteal Phase |
 57%
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In the 28 day human ovarian cycle, the duration of luteal phase is approximate?

1. 14 days

2. 28 days

3. 30 days

4. 5 days

Subtopic:  Menstrual Cycle: Luteal Phase |
 85%
From NCERT
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