Question

Which one is a gametophytic polyembryony?

• A. Endosperm polyembryony
• B. Adventitive polyembryony
• C. Antipodal polyembryony
• D. Nucellar polyembryony

Answer 1

Answer: (C)

Antipodal polyembryony

Polyembryony refers to the occurrence of more than one embryo in a seed. It is distinguished into two types: gametophytic polyembryony and sporophytic polyembryony. In gametophytic polyembryony, the embryos arise from the gametic cell of embryo sac with or without fertilization such as embryo formation from antipodal cells. In the sporophytic polyembryony, embryos arise from the zygote or proembryo or from some other sporophytic cells of ovule such as nucellus or integument. Nucellar polyembryony is also known as adventitive polyembryony.

Thus, the correct answer is option C.