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NEET UG BIOLOGY MCQ: HUMAN REPRODUCTION
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In an analysis of a semen sample, it was observed that the total number of sperms was 18 million, of which 80%
showed high motility and 20% shows less motility. How many sperms have a Y chromosome (approx.)
showed high motility and 20% shows less motility. How many sperms have a Y chromosome (approx.)
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Correct option: A
9 million
Option A (9 million) is correct because, assuming an equal distribution of X and Y chromosomes, approximately half of the total sperm count will carry a Y chromosome. Therefore, 18 million / 2 = 9 million.
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A regular cycling woman is not menstruating which one of the following is the most likely root cause of this?
Some important events in the human female reproductive cycle are given below. Arrange the events in proper sequence.
I.Secretion of FSH
II.Growth of cropus luteum
III.Growth of the follicle and oogenesis
IV.Ovulation
V.Sudden increase in the levels of LH
Which cells produce the enzymes that allow embryonic implantation? Find out the mismatch from the following homologous organs. In females, secondary oocyte completes meiosis II during Which type of immuno globin is/are abundantly found in foetus?
I.Secretion of FSH
II.Growth of cropus luteum
III.Growth of the follicle and oogenesis
IV.Ovulation
V.Sudden increase in the levels of LH
Which cells produce the enzymes that allow embryonic implantation? Find out the mismatch from the following homologous organs. In females, secondary oocyte completes meiosis II during Which type of immuno globin is/are abundantly found in foetus?