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Human Reproduction

NEET (UG) 2022 (Phase 2)MCQEasy📈 Topic in 50% papers+4−1
Ques. 1NEET (UG) 2022 (Phase 2)

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). In the light of the above statements, choose the most appropriate answer from the options given below:

  1. (A) is not correct but (R) is correct
  2. Both (A) and (R) are correct and (R) is the correct explanation of (A)
  3. Both (A) and (R) are correct but (R) is not the correct explanation of (A)
  4. (A) is correct but (R) is not correct

Answer

(2) Both (A) and (R) are correct and (R) is the correct explanation of (A)

Solution

Assertion (A): Correct – as per NCERT, during pregnancy the levels of other hormones like estrogens, progestogens, cortisol, prolactin, thyroxine, etc., are increased several folds in the maternal blood.

Reason (R): Correct – pregnancy is characterised by metabolic changes in the mother.

As per NCERT, the increased production of these hormones is essential for supporting the fetal growth, metabolic changes in the mother and maintenance of pregnancy.

∴ Both (A) and (R) are correct and (R) is the correct explanation of (A).

Answer: (2)

Keep practising — Human Reproduction

Ques. 2NEET (UG) 2021

Receptors for sperm binding in mammals are present on :

  1. Zona pellucida
  2. Corona radiata
  3. Vitelline membrane
  4. Perivitelline space
Ques. 3NEET (UG) 2021

Which of these is not an important component of initiation of parturition in humans?

  1. Release of Prolactin
  2. Increase in estrogen and progesterone ratio
  3. Synthesis of prostaglandins
  4. Release of Oxytocin
Ques. 4NEET (UG) 2021

Which of the following secretes the hormone, relaxin, during the later phase of pregnancy?

  1. Uterus
  2. Graafian follicle
  3. Corpus luteum
  4. Foetus
Ques. 5NEET (UG) 2020

Meiotic division of the secondary oocyte is completed

  1. At the time of fusion of a sperm with an ovum
  2. At the time of copulation
  3. Prior to ovulation
  4. After zygote formation
Ques. 6NEET (UG) 2020

Which of the following hormone levels will cause release of ovum (ovulation) from the Graafian follicle?

  1. Low concentration of FSH
  2. High concentration of Progesterone
  3. Low concentration of LH
  4. High concentration of Estrogen
Ques. 7NEET (UG) 2020

Match the following columns and select the correct option.

  1. (A)-(ii), (B)-(iii), (C)-(iv), (D)-(i)
  2. (A)-(i), (B)-(iv), (C)-(ii), (D)-(iii)
  3. (A)-(iv), (B)-(iii), (C)-(i), (D)-(ii)
  4. (A)-(iii), (B)-(ii), (C)-(iv), (D)-(i)
Ques. 8NEET (UG) 2019

Extrusion of second polar body from egg nucleus occurs :

  1. Before entry of sperm into ovum
  2. Simultaneously with first cleavage
  3. After entry of sperm but before fertilization
  4. After fertilization
Ques. 9NEET (UG) 2019

Select the correct sequence for transport of sperm cells in male reproductive system :

  1. Seminiferous tubules Vasa efferentia Epididymis Inguinal canal Urethra
  2. Testis Epididymis Vasa efferentia Vas deferens Ejaculatory duct Inguinal canal Urethra Urethral meatus
  3. Testis Epididymis Vasa efferentia Rete testis Inguinal canal Urethra
  4. Seminiferous tubules Rete testis Vasa efferentia Epididymis Vas deferens Ejaculatory duct Urethra Urethral meatus
Ques. 10NEET 2018

Hormones secreted by the placenta to maintain pregnancy are

  1. hCG, hPL, progestogens, prolactin
  2. hCG, hPL, estrogens, relaxin, oxytocin
  3. hCG, hPL, progestogens, estrogens
  4. hCG, progestogens, estrogens, glucocorticoids
Ques. 11NEET 2018

The difference between spermiogenesis and spermiation is

  1. in spermiogenesis spermatids are formed, while in spermiation spermatozoa are formed
  2. in spermiogenesis spermatozoa are formed, while in spermiation spermatids are formed
  3. in spermiogenesis spermatozoa from Sertoli cells are released into the cavity of seminiferous tubules, while in spermiation spermatozoa are formed
  4. in spermiogenesis spermatozoa are formed, while in spermiation spermatozoa are released from Sertoli cells into the cavity of seminiferous tubules

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