O Levels Biology (5090)•5090/11/M/J/21

Explanation
Onion Reproduction Modes Steps:
- Identify asexual reproduction: Small bulb produces daughter plants via vegetative propagation, cloning the parent.
- Identify sexual reproduction: Flower produces seeds through pollination, involving genetic recombination.
- Compare to choices: A and B address genetic identity in one mode; C covers both modes; D assumes only sexual.
- Confirm: Diagram shows both bulb and flower, enabling dual reproduction.
Why C is correct:
- Onions reproduce asexually via bulbs (genetic clones) and sexually via flowers (seeds with variation), as per plant biology definitions.
Why the others are wrong:
- A: True for asexual bulb reproduction but ignores sexual flower option.
- B: False; sexual reproduction via flowers creates genetic variation, not identical offspring.
- D: Asexual bulb method requires only one parent plant.
Final answer: C
Topic: Asexual and sexual reproduction
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