12th Class Biology Human Reproduction Question Bank

done Assertion and Reason (MCQs) - Human Reproduction Total Questions - 20

• question_answer1)

  Directions : (1-20)

  In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices:

  Assertion: Sperm formation continues even in old men.

  Reason: Ovum formation ceases in women around the age of fifty years.

  A)
  Assertion and reason both are correct statements and reason is correct explanation for assertion. done clear
  B)
  Assertion and reason both are correct statements but reason is not correct explanation for assertion. done clear
  C)
  Assertion is correct statement but reason is wrong statement. done clear
  D)
  Assertion is wrong statement but reason is correct statement. done clear
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• question_answer2)

  Assertion: The testes of male are primary sex organs.

  Reason: The ovaries of female are secondary sex organs.

   
  A)
  Assertion and reason both are correct statements and reason is correct explanation for assertion. done clear
  B)
  Assertion and reason both are correct statements but reason is not correct explanation for assertion. done clear
  C)
  Assertion is correct statement but reason is wrong statement. done clear
  D)
  Assertion is wrong statement but reason is correct statement. done clear
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• question_answer3)

  Assertion: Testes are situated outside the abdominal cavity of human male.

  Reason: Ovaries are situated inside the abdominal cavity of the female.

   
  A)
  Assertion and reason both are correct statements and reason is correct explanation for assertion. done clear
  B)
  Assertion and reason both are correct statements but reason is not correct explanation for assertion. done clear
  C)
  Assertion is correct statement but reason is wrong statement. done clear
  D)
  Assertion is wrong statement but reason is correct statement. done clear
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• question_answer4)

  Assertion: Seminiferous tubule is lined by male germ cells and sertoli cells.

  Reason: Seminiferous tubule is structural and functional unit of testes.

   
  A)
  Assertion and reason both are correct statements and reason is correct explanation for assertion. done clear
  B)
  Assertion and reason both are correct statements but reason is not correct explanation for assertion. done clear
  C)
  Assertion is correct statement but reason is wrong statement. done clear
  D)
  Assertion is wrong statement but reason is correct statement. done clear
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• question_answer5)

  Assertion: The penis is the male external genitalia and made up of special erectile tissue.

  Reason: The enlarged end of penis is glans penis and is covered by a loose fold of skin, i.e. fore skin.

   
  A)
  Assertion and reason both are correct statements and reason is correct explanation for assertion. done clear
  B)
  Assertion and reason both are correct statements but reason is not correct explanation for assertion. done clear
  C)
  Assertion is correct statement but reason is wrong statement. done clear
  D)
  Assertion is wrong statement but reason is correct statement. done clear
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• question_answer6)

  Assertion: Each ovary is covered by a thin epithelium.

  Reason: The stroma of ovary is divided into peripheral cortex and an inner medulla.

   
  A)
  Assertion and reason both are correct statements and reason is correct explanation for assertion. done clear
  B)
  Assertion and reason both are correct statements but reason is not correct explanation for assertion. done clear
  C)
  Assertion is correct statement but reason is wrong statement. done clear
  D)
  Assertion is wrong statement but reason is correct statement. done clear
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• question_answer7)

  Assertion: Inner glandular layer of uterine cavity is endometrium.

  Reason: The endometrium undergoes cyclical changes during menstrual cycle.

   
  A)
  Assertion and reason both are correct statements and reason is correct explanation for assertion. done clear
  B)
  Assertion and reason both are correct statements but reason is not correct explanation for assertion. done clear
  C)
  Assertion is correct statement but reason is wrong statement. done clear
  D)
  Assertion is wrong statement but reason is correct statement. done clear
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• question_answer8)

  Assertion: Mons pubis is a cushion of fatty tissue covered by skin and pubic hairs.

  Reason: The clitoris is a tiny finger like structure and it is equivalent to scrotum.

   
  A)
  Assertion and reason both are correct statements and reason is correct explanation for assertion. done clear
  B)
  Assertion and reason both are correct statements but reason is not correct explanation for assertion. done clear
  C)
  Assertion is correct statement but reason is wrong statement. done clear
  D)
  Assertion is wrong statement but reason is correct statement. done clear
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• question_answer9)

  Assertion: The spermatids are transformed into spermatozoa by the process of spermiogenesis.

  Reason: Mitosis and meiosis are involved during spermiogenesis.

   
  A)
  Assertion and reason both are correct statements and reason is correct explanation for assertion. done clear
  B)
  Assertion and reason both are correct statements but reason is not correct explanation for assertion. done clear
  C)
  Assertion is correct statement but reason is wrong statement. done clear
  D)
  Assertion is wrong statement but reason is correct statement. done clear
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• question_answer10)

  Assertion: At puberty 60, 000 to 80, 000 primary follicles are left in both ovaries of female.

  Reason: Both ovaries play equal role in menstrual cycle.

   
  A)
  Assertion and reason both are correct statements and reason is correct explanation for assertion. done clear
  B)
  Assertion and reason both are correct statements but reason is not correct explanation for assertion. done clear
  C)
  Assertion is correct statement but reason is wrong statement. done clear
  D)
  Assertion is wrong statement but reason is correct statement. done clear
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• question_answer11)

  Assertion: The first menstruation cycle begins at puberty and is called as menarche.

  Reason: In human females, menstruation is repeated at an average interval of about 28 to 29 days.

   
  A)
  Assertion and reason both are correct statements and reason is correct explanation for assertion. done clear
  B)
  Assertion and reason both are correct statements but reason is not correct explanation for assertion. done clear
  C)
  Assertion is correct statement but reason is wrong statement. done clear
  D)
  Assertion is wrong statement but reason is correct statement. done clear
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• question_answer12)

  Assertion: Corpus luteum is yellow endocrine gland in human female.

  Reason: It secretes large amounts of progesterone and small amount of estrogen.

   
  A)
  Assertion and reason both are correct statements and reason is correct explanation for assertion. done clear
  B)
  Assertion and reason both are correct statements but reason is not correct explanation for assertion. done clear
  C)
  Assertion is correct statement but reason is wrong statement. done clear
  D)
  Assertion is wrong statement but reason is correct statement. done clear
  View Solution play_arrow

• question_answer13)

  Assertion: Zona pellucida is a cellular layer of ovum in human female.

  Reason: Corona radiata is a non-cellular layer of ovum.

   
  A)
  Assertion and reason both are correct statements and reason is correct explanation for assertion. done clear
  B)
  Assertion and reason both are correct statements but reason is not correct explanation for assertion. done clear
  C)
  Assertion is correct statement but reason is wrong statement. done clear
  D)
  Assertion is wrong statement but reason is correct statement. done clear
  View Solution play_arrow

• question_answer14)

  Assertion: Sex of the baby is decided by the father.

  Reason: Human male is heterogametic, i.e. gynosperm and androsperms.

  A)
  Assertion and reason both are correct statements and reason is correct explanation for assertion. done clear
  B)
  Assertion and reason both are correct statements but reason is not correct explanation for assertion. done clear
  C)
  Assertion is correct statement but reason is wrong statement. done clear
  D)
  Assertion is wrong statement but reason is correct statement. done clear
  View Solution play_arrow

• question_answer15)

  Assertion: Eight to sixteen cells stage of the embryo is morula.

  Reason: It is internally hollow and has inner cell mass and trophoblast.

   
  A)
  Assertion and reason both are correct statements and reason is correct explanation for assertion. done clear
  B)
  Assertion and reason both are correct statements but reason is not correct explanation for assertion. done clear
  C)
  Assertion is correct statement but reason is wrong statement. done clear
  D)
  Assertion is wrong statement but reason is correct statement. done clear
  View Solution play_arrow

• question_answer16)

  Assertion: Human placental lactogen (hPL) is secreted by placenta.

  Reason: It induces lactation towards the end of pregnancy.

   
  A)
  Assertion and reason both are correct statements and reason is correct explanation for assertion. done clear
  B)
  Assertion and reason both are correct statements but reason is not correct explanation for assertion. done clear
  C)
  Assertion is correct statement but reason is wrong statement. done clear
  D)
  Assertion is wrong statement but reason is correct statement. done clear
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• question_answer17)

  Assertion: Foetal ejection reflex is essential for parturition.

  Reason: Fully developed foetus is responsible for parturition only.

   
  A)
  Assertion and reason both are correct statements and reason is correct explanation for assertion. done clear
  B)
  Assertion and reason both are correct statements but reason is not correct explanation for assertion. done clear
  C)
  Assertion is correct statement but reason is wrong statement. done clear
  D)
  Assertion is wrong statement but reason is correct statement. done clear
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• question_answer18)

  Assertion: Colostrum contains a lot of antibodies to develop resistance against infections in the new born baby.

  Reason: Breast-feeding during initial period of infant growth is essential for a healthy baby.

   
  A)
  Assertion and reason both are correct statements and reason is correct explanation for assertion. done clear
  B)
  Assertion and reason both are correct statements but reason is not correct explanation for assertion. done clear
  C)
  Assertion is correct statement but reason is wrong statement. done clear
  D)
  Assertion is wrong statement but reason is correct statement. done clear
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• question_answer19)

  Assertion: Inner cell mass gets differentiated as the embryo.

  Reason: Blastocyst embedded in the endometrium of the uterus, i.e. implantation.

   
  A)
  Assertion and reason both are correct statements and reason is correct explanation for assertion. done clear
  B)
  Assertion and reason both are correct statements but reason is not correct explanation for assertion. done clear
  C)
  Assertion is correct statement but reason is wrong statement. done clear
  D)
  Assertion is wrong statement but reason is correct statement. done clear
  View Solution play_arrow

• question_answer20)

  Assertion: Cyclic changes of endometrium of uterus occurs during menstruation.

  Reason: Breaking and making of endometrium is under the control of progesterone hormone.

   
  A)
  Assertion and reason both are correct statements and reason is correct explanation for assertion. done clear
  B)
  Assertion and reason both are correct statements but reason is not correct explanation for assertion. done clear
  C)
  Assertion is correct statement but reason is wrong statement. done clear
  D)
  Assertion is wrong statement but reason is correct statement. done clear
  View Solution play_arrow