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12th Biology 2013 Set3 Delhi Board Paper Solution

Question 13

Explain the steps that ensure cross pollination in an autogamous flower.

Answer
Following steps can ensure cross pollination in autogamous flowers
 
(i) Pollen grain and stigma receptivity should not be synchronized.
(ii) Anther and stigma are placed at different positions so that pollen cannot come in contact with stigma of the same flower.
(iii) Self incompatibility also prevents inbreeding.