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STD 12 - 2. human reproduction Biology - STD 12 - 2. human reproduction

CBSE - STD 12 Science - Biology (CBSE - English Medium). 352 questions in this chapter.

Question types

STD 12 - 2. human reproduction question types

352 questions across 1 question group — pick any mix to generate a Biology paper with step-by-step answer keys.

352
Questions
1
Question groups
5
Question types
Sample Questions

STD 12 - 2. human reproduction questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1M.C.Q (1 Marks)1 Mark
Given below are two statements: One is labelled as Assertion $A$ and the other is labelled as Reason $R$ :

Assertion $A$ : Breast-feeding during initial period of infant growth is recommended by doctors for bringing a healthy baby.

Reason $R$ : Colostrum contains several antibodies absolutely essential to develop resistance for the new born baby.

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

  • A
     Both $A$ and $R$ are correct but $R$ is $NOT$ the correct explanation of $A$
  • B
     $A$ is correct but $R$ is not correct
  • C
    $A$ is not correct but $R$ is correct
  • ✓
    Both $\mathrm{A}$ and $\mathrm{R}$ are correct and $\mathrm{R}$ is the correct explanation of $\mathrm{A}$

Answer: D.

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Q 3M.C.Q (1 Marks)1 Mark
Given below are two statements:

Statement $I$: The presence or absence of hymen is not a reliable indicator of virginity.

Statement $II$: The hymen is torn during the first coitus only.

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

  • A
    Both Statement $I$ and Statement $II$ are false
  • ✓
     Statement $I$ is true but Statement $II$ is false
  • C
    Statement $I$ is false but Statement $II$ is true
  • D
     Both Statement $I$ and Statement $II$ are true

Answer: B.

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Q 4M.C.Q (1 Marks)1 Mark
Given below are two statements:

Statement $I:$ Vas deferens receives a duct from seminal vesicle and opens into urethra as the ejaculatory duct.

Statement $II:$ The cavity of the cervix is called cervical canal which along with vagina forms birth canal.

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

  • A
    Statement $I$ is incorrect but Statement $II$ is true.
  • ✓
    Both Statement $I$ and Statement $II$ are true.
  • C
    Both Statement $I$ and Statement $II$ are false.
  • D
    Statement $I$ is correct but Statement $II$ is false.

Answer: B.

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Q 5M.C.Q (1 Marks)1 Mark
Given below are two statements: one is labelled as Assertion $A$ and the other is labelled as Reason $R$.

Assertion $A$: Endometrium is necessary for implantation of blastocyst.

Reason $R$: In the absence of fertilization, the corpus luteum degenerates that causes disintegration of endometrium.

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

  • A
    $A$ is false but $R$ is true.
  • B
    Both $A$ and $R$ are true and $R$ is the correct explanation of $A$.
  • ✓
    Both $A$ and $R$ are true but $R$ is NOT the correct explanation of $A$.
  • D
    $A$ is true but $R$ is false.

Answer: C.

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