How many Y-chromosomes are present in the 2nd polar body in human beings? 

1.01 2.00 
3.23 4.02 

Subtopic:  oogenesis |
 75%
From NCERT
NEET - 2022
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Which of the following hormones are secreted in women only during pregnancy?

(a) Relaxin       (b) Oxytocin  (c) hCG
(d) hPL  (e) Progesterone 

Choose the most appropriate answer from the options given below: 

1. (c) , (d) and (e) only  2. (b) and (e) only 
3. (b) , (c) and (d) only  4. (a) , (c) and (d) only 
Subtopic:  Fetal Development & Parturition |
 77%
From NCERT
NEET - 2022
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Arrange the following male sex accessory ducts in the correct sequence for the transport of sperms from the tests

(a) Epididymis  (b) Ejaculatory duct 
(c) Vasa efferentia
(d) Rete testis  (e) Vas deferens 

Choose the most appropriate  answer from the options given below: 

1. (d) , (a) , (c) , (e) , (b)  2. (d) , (c) , (e) , (a) , (b) 
3. (d) , (c) , (a) , (e) , (b)  4. (d) , (e) , (a) , (c) , (b) 
Subtopic:  Male Reproductive Duct System |
 85%
From NCERT
NEET - 2022
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Arrange the components of mammary gland. (from proximal to distal)
(a) Mammary duct (b) Lactiferous duct (c) Alveoli
(d) Mammary ampulla (e) Mammary tubules
Choose the most appropriate answer from the options given below :
1. (c) → (a) → (d) → (e) → (b)
2. (b) → (c) → (e) → (d) → (a)
3. (c) → (e) → (a) → (d) → (b)
4. (e) → (c) → (d) → (b) → (a)
Subtopic:  Mammary Gland & Lactation |
 73%
From NCERT
NEET - 2022
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How many secondary spermatocytes are required to form 400 million spermatozoa ?
1. 50 million 2. 100 million
3. 200 million 4. 400 million
Subtopic:  Spermiogenesis/Sperm Structure/Hormonal Regulation |
 64%
NEET - 2022
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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):  During pregnancy, the level of thyroxine is increased in the maternal blood.
Reason (R):  Pregnancy is characterised by metabolic changes in the mother.
In the light of the above statements, choose the most appropriate answer from the options given below :
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. (A) is False but (R) is True.
Subtopic:  Fetal Development & Parturition |
 66%
NEET - 2022
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The testes in humans are situated outside the abdominal cavity inside a pouch called scrotum. The purpose served is for:

1. escaping any possible compression by the visceral organs
2. providing more space for the growth of epididymis
3. providing a secondary sexual feature for exhibiting the male sex
4. maintaining the scrotal temperature lower than the internal body temperature

Subtopic:  Male Reproductive System |
 96%
From NCERT
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Select the correct sequence for the transport of sperm cells in the male reproductive system:

1. Testis → Epididymis → Vasa efferentia → Vas deferens → Ejaculatory duct → Inguinal canal → Urethra → Urethral meatus
2. Testis → Epididymis → Vasa efferentia → Rete testis → Inguinal canal → Urethra
3. Seminiferous tubules → Rete testis → Vasa efferentia → Epididymus → Vas deferens → Ejaculatory duct → Urethra → Urethral meatus
4. Seminiferous tubules → Vasa efferentia → Epididymis → Inguinal canal → Urethra
Subtopic:  Male Reproductive System |
 90%
From NCERT
NEET - 2019
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The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis is:

1. spermatocyte-spermatogonia- spermatid-sperms
2. spermatogonia-spermatocyte-spermatid-sperms
3. spermatid-spermatocyte-spermatogonia-sperms
4. spermatogonia-spermatid-spermatocyte-sperms
Subtopic:  Seminiferous Tubules & Spermatogenesis | Spermiogenesis/Sperm Structure/Hormonal Regulation |
 91%
From NCERT
AIPMT - 2009
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Identify the human development stage shown below as well as the related right place of its occurrence in a normal pregnant woman, and select the right option for the two together:

Developmental stage

Site of occurrence

1.

Blastocyst

Uterine wall

2.

8 cells morula

Starting point of Fallopian tube

3.

Late morula

Middle part of Fallopian tube

4.

Blastula

End part of Fallopian tube

Subtopic:  Introduction |
 76%
From NCERT
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