Question

Heterospory is important in the devlopment of ______ habit.

• A. seed
• B. pollen
• C. ovule
• D. all of the above

Answer 1

The correct option is A seed

Heterospory is a phenomenon in which two types of spores are formed, which is important for the development of seed habit. The male cones produce haploid microspores and the female cones make haploid megaspores. The male cones are smaller than the female cones. The two types of spores form two different types of gametophytes, male and female. Since it finally leads to seed development, heterospory is a significant evolutionary advancement in vascular plants.