M.C.Q on SRIFP and HR

Assertion: Pollen grains are well preserved as fossils.

Reason: Pollen posses sporopollenin.

• (a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion.

• (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion.

• (c) If the assertion is true but the reason is false.

• (d) If both the assertion and reason are false.

Assertion: Coconut water is a cellular endosperm.

Reason: White kernel of coconut is a free nuclear endosperm.

• (a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion.

• (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion.

• (c) If the assertion is true but the reason is false.

• (d) If both the assertion and reason are false.

Assertion: Most of the zygote divides only after certain amount of endosperm is formed.

Reason: This is an adaptation to provide assumed nutrition to the developing embryo.

• (a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion.

• (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion.

• (c) If the assertion is true but the reason is false.

• (d) If both the assertion and reason are false.

Assertion: Majority of flowering plant have bisexual flower still they show cross pollination.

Reason: Continued self-pollination results in inbreeding depression.

• (a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion.

• (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion.

• (c) If the assertion is true but the reason is false.

• (d) If both the assertion and reason are false.

Assertion: Self incompatibility is genetic mechanism to prevent self pollination. Reason: It promotes germination of pollen from same plant or same flower on stigma.

• (a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion.

• (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion.

• (c) If the assertion is true but the reason is false.

• (d) If both the assertion and reason are false.

Assertion: Myometrium undergoes cyclical changes during menstrual cycle. Reason: Myometrium’s lines the uterine cavity

• (a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion.

• (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion.

• (c) If the assertion is true but the reason is false.

• (d) If both the assertion and reason are false.

Assertion: Androgens stimulate the process of spermatogenesis.

Reason: FSH acts on sertoli cells and stimulates the secretion of some factors which helps in the process of spermiogenesis.

• (a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion.

• (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion.

• (c) If the assertion is true but the reason is false.

• (d) If both the assertion and reason are false.

Assertion: Ovulation generally occur during the mid of cycle.

Reason: LH surge occur in mid of cycle.

• (a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion.

• (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion.

• (c) If the assertion is true but the reason is false.

• (d) If both the assertion and reason are false.

Assertion: Doctors use to inject oxytocins to induce delivery.

Reason: Oxytocin causes uterine contraction which helps in delivery.

• (a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion.

• (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion.

• (c) If the assertion is true but the reason is false.

• (d) If both the assertion and reason are false.

Assertion: Spermatogonia are haploid cells.

Reason: Spermatogonia multiply by binary fisision.

• (a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion.

• (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion.

• (c) If the assertion is true but the reason is false.

• (d) If both the assertion and reason are false.