Assertion: Rhizomes, tubers and corms are excellent methods of sexual reproduction.
Reason: Autogamy is transfer of pollen from anther of one flower to stigma of another.
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → Both Assertion (A) and Reason (R) are false.
Explanation:
Assertion: "Rhizomes, tubers, and corms are excellent methods of sexual reproduction." – False
- Rhizomes, tubers, and corms are modified underground stems that help in vegetative propagation, which is a form of asexual reproduction, not sexual reproduction.
- Sexual reproduction involves fusion of gametes, whereas vegetative propagation produces offspring without fertilization.
Reason: "Autogamy is the transfer of pollen from the anther of one flower to the stigma of another." – False
- Autogamy refers to self-pollination within the same flower (not between different flowers).
- The correct term for pollen transfer between flowers of the same plant is geitonogamy, while transfer between flowers of different plants is xenogamy.
Final Answer:
Both Assertion (A) and Reason (R) are false.