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How do Organisms Reproduce? — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceHow do Organisms Reproduce?1 Mark
MCQ
For two statements are given $-$ one labelled Assertion $(A)$ and the other labelled Reason $(R).$ Select the correct answer to these questions from the codes $\ce{(a), (b), (c)}$ and $(d)$ as given below :
Assertion : Self $-$ pollination occurs when the pollen grains from the anther of a flower are transferred to the stigma of same flower or another flower on the same plant.
Reason : Insects and wind help in autogamy.
  • A
    Both $A$ and $R$ are true, and $R$ is correct explanation of the assertion.
  • B
    Both $A$ and $R$ are true, but $R$ is not the correct explanation of the assertion.
  • ✓
    $A$ is true, but $R$ is false.
  • D
    $A$ is false, but $R$ is true.
✓

Answer

Correct option: C.
$A$ is true, but $R$ is false.
Insects help in cross $-$ pollination. When an insect sits on the flower of a plant for sucking nectar then the pollen grains from anther of the flower stick to its body and when this insect sits on another flower of similar plant, pollen grains sticking to its body are transferred to the stigma of another flower. In this way, the insect transfers the pollen grains from the anther of flower in one plant to the stigma of flower in another plant and causes cross $-$ pollination. The blowing wind also carries pollen grains from one flower to another flower and helps in cross pollination.

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