NEETBotanySexual Reproduction in Flowering Plants
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Wind-pollinated flowers generally have a single ovule in each ovary and numerous flowers packed into an inflorescence. Reason (R): Wind pollination is a highly directed and efficient process that guarantees fertilization of multiple ovules. In the light of the above statements, choose the correct a
Options
- ABoth (A) and (R) are true and (R) is the correct explanation of (A).
- BBoth (A) and (R) are true but (R) is not the correct explanation of (A).
- C(A) is false but (R) is true.
- D(A) is true but (R) is false.
Correct answer
D. (A) is true but (R) is false.
Step-by-step solution
Assertion (A) is a correct statement. According to NCERT, wind-pollinated flowers often have a single ovule in each ovary and numerous flowers packed into an inflorescence (e.g., corn cob). Reason (R) is an incorrect statement. Wind pollination (anemophily) is a non-directional, chance-dependent, and highly inefficient process. A large amount of pollen is wasted, which is why wind-pollinated plants produce enormous amounts of pollen compared to the number of ovules available for pollination. Answer: (A) is true but