Human Reproduction — DPP 8

20 NEET questions from Human Reproduction, with answers and explanations. Attempt it as a timed test to get scoring, accuracy breakdown and mistake tracking.

Attempt this test free 20 questions · 30 minutes · +80 marks
1
Which event is incorrectly matched with the time of its occurence with respect to a 28 days menstrual cycle?
  1. A Beginning of the menstrual flow - Day 1
  2. B Ovulation - Day 14
  3. C Beginning of the proliferative phase - Day 5
  4. D Peak secretion of estrogen - Day 22
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Correct answer: D

2
Menstruation occurs after:
  1. A increase in the level of progesterone.
  2. B fall in level of progesterone.
  3. C increase is level of FSH.
  4. D None of these
Show answer

Correct answer: B

3
What is the outcome of the second meiotic division of the secondary oocyte?
  1. A Formation of a diploid zygote
  2. B Formation of the first polar body
  3. C Formation of a second polar body and a haploid ovum (ootid)
  4. D Release of the zona pellucida
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Correct answer: C

4
Which of the following induces foetal ejection reflex?
  1. A Initiation of lactation
  2. B Fully developed foetus and placenta
  3. C Expulsion of the baby out of the uterus
  4. D Transport of embryo in the fallopian tube
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Correct answer: B

5
What is the function of sertoli cells in the seminiferous tubules?
  1. A To produce sperms.
  2. B To provide nutrition to germ cells.
  3. C To secrete androgens.
  4. D To transport sperms.
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Correct answer: B

6
After the transformation of spermatids into sperm, their heads become emedded in a cell called "X" and are finally released from the "Y" by the process called "Z". Identify X, Y and Z.
  1. A
  2. B
  3. C
  4. D
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Correct answer: C

7
Development of blastocyst and its attachment to the uterine wall in human beings is called:
  1. A Fertilisation
  2. B Gestation
  3. C Implantation
  4. D Insemination
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Correct answer: C

8
What is the role of the zona pellucida during fertilisation?
  1. A It releases the ovum
  2. B It blocks the entry of additional sperms after one sperm contacts it
  3. C It transports the sperm to the ovum
  4. D It helps in the formation of the polar body
Show answer

Correct answer: B

9
Human placenta is formed by:
  1. A Chorionic villi
  2. B Umbilical cord
  3. C Uterine tissue
  4. D Both (1) and (2)
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Correct answer: D

10
An important factor contributing to the onset and maintenance of labour contractions is:
  1. A increased contractility of the uterine muscles from increased oxytocin levels.
  2. B mechanical pressure on the cervix generated by the emerging baby's head.
  3. C stretching of the uterus during the final stages of foetal growth.
  4. D All of these
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Correct answer: D

11
Which hormone(s) is/are produced in women during pregnancy?
  1. A Human chorionic gonadotropin (hCG)
  2. B Relaxin
  3. C Human placental lactogen (hPL)
  4. D All of these
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Correct answer: D

12
Where does the urethra extend to from the urinary bladder?
  1. A Through the testis
  2. B Along the posterior surface of the testis
  3. C Through the penis to its external opening called the urethral meatus
  4. D Into the epididymis
Show answer

Correct answer: C

13
Drugs such as Thalidomide taken by woman in first trimester of pregnancy cause all the following malformations in the developing embryo except
  1. A Phocomelia
  2. B Amelia
  3. C Heart disorder
  4. D Placentitis
Show answer & explanation

Correct answer: D

Placentitis is inflammation of placenta.
14
In breast, the mammary alveoli open into:
  1. A Mammary duct
  2. B Mammary tubules
  3. C Mammary ampulla
  4. D Lactiferous duct
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Correct answer: B

15
The secretion of .......... chiefly helps in the lubrication of the penis.
  1. A prostate gland
  2. B bulbourethral gland
  3. C seminal vesicle
  4. D all of these
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Correct answer: B

16
The function of ovary is:
  1. A to produce female gamete.
  2. B to produce several steroid hormones.
  3. C to provide the site for fertilisation.
  4. D Both (1) and (2)
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Correct answer: D

17
In the absence of acrosome, the sperm:
  1. A cannot penetrate the egg.
  2. B comes in contact with zona pellucida layer of the ovum.
  3. C cannot get energy.
  4. D cannot swim.
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Correct answer: A

18
Middle piece of a mammalian sperm contains:
  1. A Centriole only
  2. B Nucleus and mitochonodria
  3. C Proximal centriole and mitochondria
  4. D Mitochondria
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Correct answer: D

19
In males, testes are contained in the scrotal sacs because:
  1. A other organs do not make space for the testes in the abdominal cavity.
  2. B testes in the abdomen will hamper maturation of sperms.
  3. C it provides temperature that is slightly lower than body temperature required for formation of functional sperms.
  4. D it facilitates ejaculation.
Show answer

Correct answer: C

20
What is the scientific basis for stating that the father determines the sex of the baby?
  1. A The mother produces both X and Y chromosomes
  2. B The father produces both X and Y chromosome-bearing sperms
  3. C The father's X chromosomes are more dominant
  4. D The mother only produces Y chromosome-bearing ova
Show answer

Correct answer: B

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