Human Reproduction Chapter-Wise Test 6

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which process is responsible for the shedding of the endometrial lining during menstruation?

Ovulation
Cortical reaction
Hormonal withdrawal
Implantation failure
3

The withdrawal of estrogen and progesterone levels, when fertilization does not occur, leads to the shedding of the endometrium (menstruation).

Which of the following statements regarding ovulation is correct?

Ovulation occurs at the beginning of the menstrual cycle.
A surge in luteinizing hormone (LH) triggers ovulation.
Progesterone triggers the release of the oocyte.
Ovulation occurs during menstruation.
2

The LH surge in the mid-cycle triggers the release of the oocyte from the follicle.

Which of the following maternal adaptations is observed during pregnancy?

Decrease in blood volume
Increased systemic vascular resistance
Increase in cardiac output
Decrease in heart rate
3

Maternal cardiac output increases during pregnancy due to increased blood volume and heart rate to meet the metabolic demands of both mother and fetus.

Which structure in the testes is primarily responsible for androgen secretion?

Sertoli cells
Leydig cells
Seminiferous tubules
Epididymis
2

Androgens, including testosterone, are mainly produced by Leydig cells located in the interstitial tissue of the testes.

Which hormone is administered in assisted reproduction to induce final oocyte maturation?

Progesterone
Human chorionic gonadotropin (hCG)
Gonadotropin-releasing hormone (GnRH)
Follicle-stimulating hormone (FSH)
2

hCG is administered to mimic the natural LH surge, inducing final oocyte maturation before retrieval in IVF procedures.

Which part of the male reproductive system is responsible for the maturation and storage of sperm?

Testes
Epididymis
Seminiferous tubules
Vas deferens
2

The epididymis is the site where sperm mature and are stored until ejaculation.

Which structure in the male reproductive system is primarily responsible for sperm production?

Epididymis
Vas deferens
Seminiferous tubules
Prostate gland
3

Sperm are produced in the seminiferous tubules of the testes.

Which assisted reproductive technique involves injecting a single sperm directly into an oocyte?

Intrauterine insemination (IUI)
Conventional in vitro fertilization (IVF)
Intracytoplasmic sperm injection (ICSI)
Gamete intrafallopian transfer (GIFT)
3

ICSI is a technique where a single sperm is injected directly into an oocyte, widely used to overcome severe male infertility.

Which hormone from the anterior pituitary is essential for stimulating testosterone production in males?

Follicle-stimulating hormone (FSH)
Luteinizing hormone (LH)
Prolactin
GnRH
2

Luteinizing hormone (LH) stimulates Leydig cells in the testes to produce testosterone.

Which process marks the initiation of embryonic genome activation (EGA)?

Formation of the morula
Blastocyst formation
Implantation into the endometrium
Gastrulation
2

Embryonic genome activation typically begins during the blastocyst stage when the embryo starts transcribing its own genes.

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