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Human Reproduction · Question 46

NEET 2016 (Phase 1)MCQEasy📈 Topic in 50% papers+4−1
1

Select the incorrect statement.

  1. LH and FSH decrease gradually during the follicular phase.
  2. LH triggers secretion of androgen from the Leydig cells.
  3. FSH stimulates the Sertoli cells which help in spermiogenesis.
  4. LH triggers ovulation in ovary.

Answer

(1) LH and FSH decrease gradually during the follicular phase.

Solution

As per NCERT, during the follicular phase the secretion of gonadotropins (LH and FSH) increases gradually and stimulates follicular development.

⇒ Statement (1) is incorrect.

∵ LH acts on Leydig cells and stimulates synthesis and secretion of androgens — (2) is correct.

∵ FSH acts on Sertoli cells and stimulates factors that help in spermiogenesis — (3) is correct.

∵ The LH surge at the middle of the cycle induces rupture of the Graafian follicle (ovulation) — (4) is correct.

Answer: (1)

NEET 2016 (Phase 1)

Keep practising — Human Reproduction

2

Identify the correct statement on 'inhibin'.

  1. Is produced by granulosa cells in ovary and inhibits the secretion of LH
  2. Is produced by nurse cells in testes and inhibits the secretion of LH
  3. Inhibits the secretion of LH, FSH and prolactin
  4. Is produced by granulosa cells in ovary and inhibits the secretion of FSH
NEET 2016 (Phase 1)
3

Which of the following depicts the correct pathway of transport of sperms?

  1. Rete testis Efferent ductules Epididymis Vas deferens
  2. Rete testis Epididymis Efferent ductules Vas deferens
  3. Rete testis Vas deferens Efferent ductules Epididymis
  4. Efferent ductules Rete testis Vas deferens Epididymis
NEET 2016 (Phase 2)
4

Match column I with column II and select the correct option using the codes given below.

  1. (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
  2. (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
  3. (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)
  4. (a)-(i), (b)-(iv), (c)-(iii), (d)-(ii)
NEET 2016 (Phase 2)
5

Several hormones like hCG, hPL, estrogen, progesterone are produced by

  1. ovary
  2. placenta
  3. Fallopian tube
  4. pituitary.
NEET 2016 (Phase 2)
6

In human females, meiosis-II is not completed until

  1. uterine implantation
  2. birth
  3. puberty
  4. fertilisation
AIPMT 2015
7

Which of the following layers in an antral follicle is acellular?

  1. Stroma
  2. Zona pellucida
  3. Granulosa
  4. Theca interna
AIPMT 2015
8

Which of the following events is not associated with ovulation in human life?

  1. Release of secondary oocyte
  2. LH surge
  3. Decrease in estradiol
  4. Full development of Graafian follicle
AIPMT 2015
9

Ectopic pregnancies are referred to as

  1. implantation of defective embryo in the uterus
  2. pregnancies terminated due to hormonal imbalance
  3. pregnancies with genetic abnormality
  4. implantation of embryo at site other than uterus.
AIPMT 2015
10

Which of the following cells during gametogenesis is normally diploid?

  1. Spermatogonia
  2. Secondary polar body
  3. Primary polar body
  4. Spermatid
AIPMT 2015 (Cancelled)
11

Capacitation refers to changes in the

  1. ovum after fertilisation
  2. sperm after fertilisation
  3. sperm before fertilisation
  4. ovum before fertilisation
AIPMT 2015 (Cancelled)

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