Question:
Which is NOT a common example of adventive polyembryony?
Which is NOT a common example of adventive polyembryony?
Show Hint
Citrus and mango show adventive polyembryony, but pineapple does not.
Updated On: Nov 12, 2026
- Pineapple
- Mango
- Orange
- Lemon
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept
In adventive polyembryony, extra embryos arise directly from diploid cells of the nucellus or integument, outside the embryo sac.
Step 2: Common examples
It is typical in Citrus, such as orange and lemon, and in mango, where one seed can give several seedlings.
Step 3: Find the exception
Pineapple fruits usually develop without fertilisation (parthenocarpy) and the plant is propagated vegetatively. It is not an example of adventive polyembryony.
Final Answer:
Pineapple is not an example of adventive polyembryony. \[ \boxed{\text{(A) }\text{Pineapple}} \]
In adventive polyembryony, extra embryos arise directly from diploid cells of the nucellus or integument, outside the embryo sac.
Step 2: Common examples
It is typical in Citrus, such as orange and lemon, and in mango, where one seed can give several seedlings.
Step 3: Find the exception
Pineapple fruits usually develop without fertilisation (parthenocarpy) and the plant is propagated vegetatively. It is not an example of adventive polyembryony.
Final Answer:
Pineapple is not an example of adventive polyembryony. \[ \boxed{\text{(A) }\text{Pineapple}} \]
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