Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents

Your guest activity stays on this device

Sign in to save progress →
Sign in

Human Reproduction question

2022 · Q72
Guest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
  1. PYQ Library
  2. /NEET
  3. /Biology
  4. /Human Reproduction
  5. /2022 · Q72

Human Reproduction question

2022 · Q72

NEETBiologyHuman ReproductionMCQ+4 / −1

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A): During pregnancy the level of thyroxine is increased in the maternal blood.

Reason (R): Pregnancy is characterised by metabolic changes in the mother.

In the light of the above statements, choose the most appropriate answer from the options given below:

  1. A
    (A) is not correct but (R) is correct
  2. B
    Both (A) and (R) are correct and (R) is the correct explanation of (A)
  3. C
    Both (A) and (R) are correct but (R) is not the correct explanation of (A)
  4. D
    (A) is correct but (R) is not correct
View written solutionFree

Correct answer: B

Option (b) is the correct answer because thyroxine is the main hormone that increases the basal metabolic rate in our body. A high metabolic rate is required during pregnancy, so levels of thyroxine increase in pregnant females along with other hormones such as cortisol, progesterone, etc.

PreviousNext

More from Human Reproduction

  • Which of the following statements are true for spermatogenesis but do not hold true for Oogenesis? (a) It results in the formation of haploid gametes (b) Differentiation of gamete occurs after the completion of meiosis (c) Meiosis occurs…2022 · MCQ
  • Given below are two statements : Statement I : The release of sperms into the seminiferous tubules is called spermiation. Statement II : Spermiogenesis is the process of formation of sperms from spermatogonia. In the light of the above…2022 · MCQ
  • At which stage of life the oogenesis process is initiated?2022 · MCQ
  • Receptors for sperm binding in mammals are present on :2021 · MCQ
  • Which of these is not an important component of initiation of parturition in humans?2021 · MCQ
  • Which of the following secretes the hormone, relaxin, during the later phase of pregnancy?2021 · MCQ
  • Meiotic division of the secondary oocyte is completed2020 · MCQ
  • Which of the following hormone levels will cause release of ovum (ovulation) from the graffian follicle?2020 · MCQ