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Human Reproduction and Reproductive Health

Description: Practice questions for various medical entrance exams including AIPMT and CBSE and STATE board exams
Number of Questions: 25
Created by:
Tags: LH FSH Colustrm corpus leuteum leydigcells blastula morula HCG Spermatogenesis Menstrual Cycle Structure of Reproductive System Female Reproductive System Mechanism of Fertilization and Implantation Fertilisation and Implantation
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In which of the following techniques do eggs and sperm are collected and injected directly into the upper regions of the oviducts, where fertilization normally takes place?

  1. Gamete intrafallopian transfer (GIFT)

  2. Intracytoplasmic sperm injection (ICSI)

  3. Zygote intrafallopian transfer (ZIFT)

  4. Embryo transfer


Correct Option: A
Explanation:

In gamete intrafallopian transfer (GIFT)eggs and sperm are collected and injected directly into the upper regions of the oviducts, where fertilization normally takes place.

Which of the following hormones is secreted by sertoli cells which exerts negative feedback on the production of FSH by cells in the anterior pituitary?

  1. Testosterone

  2. Inhibin

  3. Progesterone

  4. Luteinizing hormone


Correct Option: B
Explanation:

Inhibin is secreted by sertoli cells. It exerts negative feedback on the production of FSH by cells in the anterior pituitary.

Conversion of spermatid into spermatozoa is called

  1. gametogenesis

  2. spermatogenesis

  3. spermiogenesis

  4. karyokinesis


Correct Option: C
Explanation:

Conversion of spermatid into spermatozoa is called spermiogenesis. 

Yellow mass of tissue called corpus luteum in mammals is present in

  1. skin as pain receptor

  2. brain to connect cerebral hemisphere

  3. ovary for secretion of progesterone

  4. heart to initiate the heart beat


Correct Option: C
Explanation:

Yellow mass of tissue called corpus luteum in mammals is present in ovary for secretion of progesterone. It is formed after ovulation.

Which of the following cell organelles of the spermatid forms the acrosome of the sperm during spermiogenesis?

  1. Ribosome

  2. Golgi body

  3. Mitochondrion

  4. Nucleolus


Correct Option: B
Explanation:

Golgi body of the spermatid forms the acrosome of the sperm during spermiogenesis.

Endometrium is the lining of

  1. oviduct

  2. uterus

  3. vagina

  4. urinary bladder


Correct Option: B
Explanation:

Endometrium is the  lining of uterus.

Human ovarian cycle consists of 28 days. Ovulation takes place on

  1. the 2nd day of the cycle

  2. the 14th day of the cycle

  3. the 21st day of the cycle

  4. on the 24th-26th days of the cycle


Correct Option: B
Explanation:

Human ovarian cycle consists of 28 days. Ovulation takes place on the 14th day of the cycle.

A female reproductive structure analogous to male penis is

  1. labia minora

  2. cervix

  3. vagina

  4. clitoris


Correct Option: D
Explanation:

A female reproductive structure analogous to male penis is clitoris.

Semen consists of sperms and secretion from

  1. seminal vesicles, ureter and prostate gland

  2. seminal vesicles, prostate and cowper's glands

  3. prostate and cowper's glands and follicles

  4. follicles, ureter and prostate gland


Correct Option: B
Explanation:

Semen consists of sperms and secretion from seminal vesicles, prostate and cowper's glands.

The solid ball of cells, resembling mulberry fruit, resulting from the cleavage of zygote is called

  1. gastrula

  2. blastocyst

  3. blastula

  4. morula


Correct Option: D
Explanation:

The solid ball of cells ,resembling mulberry fruit ,resulting from the cleavage of zygote  is called morula .

The primary spermatocycte formed during spermatogenesis is

  1. haploid

  2. triploid

  3. polyploid

  4. diploid


Correct Option: D
Explanation:

The primary spermatocycte formed during spermatogenesis is diploid (2n).

In humans, spermatocytes are nourished by

  1. rete testis

  2. leydig cells

  3. tunica albuginea

  4. sertoli cells


Correct Option: D
Explanation:

In humans, spermatocytes are nourished by sertoli cells.

The hormone secreted by Leydig cells is

  1. estrogen

  2. progesterone

  3. testosterone

  4. prolactin


Correct Option: C
Explanation:

The hormone secreted by Leydig cells is testosterone.

The release of sperms from the seminiferous tubule is called

  1. spermiogenesis

  2. capacitation

  3. spermiation

  4. spermatogenesis.


Correct Option: C
Explanation:

The release of sperms from the seminiferous tubule is called spermiation.

How many sperms can be produced by 10 primary spermatocytes?

  1. 10

  2. 20

  3. 40

  4. 30


Correct Option: C
Explanation:

One primary spermatocyte can produce 4 sperms.Therefore, 10 primary spermatocytes can produce 40 sperms.

Which of the following hormones stimulate leydig cells for secreting testosterone?

  1. FSH

  2. LH

  3. TSH

  4. Oxytocin


Correct Option: B
Explanation:

Lutinising Hormone stimulates leydig cells for secreting testosterone.

Contractions of muscles in the uterine wall during child birth and in the breasts during milk ejection are stimulated by

  1. estrogen

  2. oxytocin

  3. prolactin

  4. progesterone


Correct Option: B
Explanation:

Contractions of muscles in the uterine wall during child birth and in the breasts during milk ejection are stimulated by oxytocin.

Which part of sperm secretes sperm lysins like hyaluronidase?

  1. Tail

  2. Nucleus

  3. Acrosome

  4. Middle piece


Correct Option: C
Explanation:

Acrosome of sperm secretes  sperm lysins like hyaluronidase.

Sexually transmitted disease gonorrhea is caused by

  1. Treponema pallidum

  2. Chlamydia trachomatis

  3. Neisseria gonorrhoeae

  4. Herpes simplex virus


Correct Option: C
Explanation:

Sexually transmitted disease gonorrhea is caused by Neisseria gonorrhoeae.

Oral contraceptives or birth control pills prevent pregnancy by preventing

  1. sperm formation

  2. implantation

  3. ovulation

  4. fertilisation


Correct Option: C
Explanation:

The oral contraceptives or birth control pills work by preventing ovulation. 

Which of the following is not a barrier method of contraception?

  1. Condom

  2. Diaphragm

  3. Cervical cap

  4. Vasectomy


Correct Option: D
Explanation:

Vasectomy is not a barrier method of contraception. Vasectomy is a surgical method of contraception in males.

Presence of which of the following hormones is the basis for pregnancy testing?

  1. Lutenising hormone

  2. Follicle stimulating hormone

  3. Oxytocin

  4. Human chorionic gonadotropin


Correct Option: D
Explanation:

Presence of human chorionic gonadotropin (hCG) hormone is the basis for pregnancy testing.

Which of the following hormones induces ovulation in female?

  1. Progesterone

  2. Prolactin

  3. Oxytocin

  4. Luteinizing hormone


Correct Option: D
Explanation:

Luteinizing hormone induces ovulation in females.

Following ovulation, the follicle cells continue to proliferate and form a mass of endocrine tissue about the size of a marble. This structure, which remains in the ovary, is the corpus luteum. Its main function is to secrete

  1. testosterone

  2. follicle stimulating hormone

  3. oxytocin

  4. progesterone


Correct Option: D
Explanation:

Corpus luteum secretes progesterone and estrogen.

During oogenesis in mammals, the second meiotic division occurs

  1. in the formation of the primary oocyte

  2. in the formation of the secondary oocyte

  3. before ovulation

  4. during fertilization


Correct Option: D
Explanation:

During oogenesis in mammals, the second meiotic division occurs during fertilisation.

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