Q729
Self incompatibility arises due to
A.
Insufficient pollen
B.
Self pollination takes place
C.
Pollen does not germinate on ovulre
AnswerD.
All of the above
Answer: Option C
Solution
Answer: Option C
Solution:
Self-incompatibility arises due to Pollen does not germinate on the ovule.It is a widespread mechanism in flowering plants that prevents inbreeding and promotes outcrossing.
The self-incompatibility response is genetically controlled by one or more multi-allelic loci and relies on a series of complex cellular interactions between the self-incompatible pollen and pistil.