Human Reproduction Mock Tests

20 questions available

Human Reproduction Mock Test 1

Questions: 20

Sample Questions

Class 12 Biology

Which of the following statements correctly distinguishes spermatogenesis from oogenesis in humans?

A Spermatogenesis produces haploid cells; oogenesis produces diploid cells

B Oogenesis begins before birth, while spermatogenesis begins only at puberty

C Spermatogenesis yields four functional sperm per meiotic division; oogenesis yields one functional ovum and polar bodies

D Both processes are continuous from puberty onwards

Class 12 Biology

In a human somatic cell during the G1 phase of the cell cycle, there are 46 chromosomes. After the S phase, how many chromatids are present in each chromosome, and what is the total chromatid count?

A 1 chromatid per chromosome; 46 total

B 2 chromatids per chromosome; 92 total

C 2 chromatids per chromosome; 46 total

D 1 chromatid per chromosome; 92 total

Class 12 Biology

In human males, spermatogenesis begins at puberty because:

A Testosterone production increases and reaches the seminiferous tubules

B The number of spermatozoa doubles at puberty

C Follicle-stimulating hormone decreases after puberty

D Seminiferous tubules are fully formed only after puberty

Class 12 Biology

The human female reproductive system develops from all three germ layers during embryogenesis. Which germ layer primarily gives rise to the gonads (ovaries)?

A Ectoderm

B Mesoderm

C Endoderm

D Blastocoel

Class 12 Biology

The process of oogenesis differs from spermatogenesis in that:

A Oogenesis produces polar bodies while spermatogenesis does not

B Oogenesis is completed before birth while spermatogenesis starts at puberty

C Oogenesis produces four functional eggs while spermatogenesis produces four sperm

D Oogenesis occurs in the testes while spermatogenesis occurs in the ovaries

Class 12 Biology

Spermatogenesis differs from oogenesis in that:

A One functional gamete is produced from each meiotic division in oogenesis, while four are produced in spermatogenesis

B Spermatogenesis begins at puberty while oogenesis starts during fetal development

C Oogenesis produces haploid cells while spermatogenesis produces diploid cells

D Spermatogenesis occurs in the ovaries while oogenesis occurs in the testes

Class 12 Biology

After implantation, which hormone is primarily secreted by the trophoblast layer to maintain the corpus luteum during early pregnancy:

A hCG (human Chorionic Gonadotropin)

B Prolactin

C Relaxin

D Estrogen only

Class 12 Biology

The placenta serves all of the following functions EXCEPT:

A Secretion of relaxin and estrogen to maintain pregnancy

B Provides a structural connection between the mother and the fetus

C Supplying oxygen and nutrients to the embryo/fetus

D Producing the primary oocytes needed for future pregnancies of the female

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