Grey crescent is the area -

1. At the point of entry of sperm into ovum

2. Just opposite to the site of entry of sperm into ovum

3. At the animal pole

4. At the vegetal pole

Subtopic:  Embryonic Development till Gastrulation |
 67%
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NEET 2023 - Target Batch - Aryan Raj Singh
Hints

If mammalian ovum fails to get fertilized, which one of the following is unlikely -

1. Estrogen secretion further decreases

2. Progesterone secretion rapidly declines

3. Corpus luteum will disintegrate

4. Primary follicle starts developing

Subtopic:  Introduction to Menstrual Cycle: 2 | Introduction to Menstrual Cycle |
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

Menstrual bleeding is the result of:

1. low levels of ovarian hormones
2. high levels of ovarian hormones
3. high levels of LH
4. high levels of FSH

Subtopic:  Introduction to Menstrual Cycle: 2 | Introduction to Menstrual Cycle |
 68%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

In oogenesis, when a diploid cell undergoes meiosis, how many ova result?

1. 1

2. 2

3. 3

4. 4

Subtopic:  Ovary |
 75%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

Identify the incorrectly matched pair:

1.

Ovulation

LH surge

2.

Follicular phase of menstrual cycle

Regeneration of endometrium

3.

Luteal phase

Secretion of FSH

4.

Menstruation

Withdrawal of progesterone

Subtopic:  Menstrual Cycle: Pre Ovulatory Phase | Menstrual Cycle: Luteal Phase |
 75%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

Fructose is contributed to the semen by the secretions of:

1.  Seminal vesicles

2.  Prostate

3.  Bulbourethral glands

4.  Testes

Subtopic:  Semen and Male Fertility |
 85%
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NEET 2023 - Target Batch - Aryan Raj Singh
Hints

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 System |
 73%
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

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:  Female Reproductive System-1 |
 86%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

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: 1 | Menstrual Cycle: Pre Ovulatory Phase | Menstrual Cycle: Luteal Phase |
 86%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

What structure gets implanted on the wall of the uterus during embryonic development?

1.   2.  
3.   4.  

Subtopic:  Implantation : Part 1 |
 82%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh