Question

Which of the following result in outbreeding?

• A. Heterostyly
• B. Herkogamy
• C. Protoandry
• D. All of the above.

Answer 1

The correct option is D

All of the above.

Heterostyly: The length of the style would be longer than the stamen in a bisexual flower.
Herkogamy: Male and female organs are so placed in a flower that pollen grains from anther are unable to reach the stigma of the same flowers.
Dichogamy: Male and female organs mature at different times. If the anther matures first, its called protoandry and if the stigma matures first, it is called protogyny. All of these discourage self ferlilisation and result in out breeding.