A) are fewer in number
B) do not germinate successfully
C) do not produce healthy plant
D) all of the above
Correct Answer: D
Solution :
When pollen grains of a flower pollinate the same flower, it is known as autogamy or self-pollination. Autogamy is avoided in nature because: (a) these are fewer in number and in cross pollinated crops, they produce inbreeding depression. (b) do not germinate successfully (c) do not produce healthy plants.
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