Q. In a type of apomixis known as adventive embryony, embryos develop directly from the :
A) nucellus or integuments
B) synergids or antipodals in an embryo sac
C) accessory embryo sacs in the ovule
D) zygote
Explanation
[Solution from source] In adventive embryony (seen in Citrus and mango), diploid nucellar or integument cells outside the embryo sac grow directly into embryos, with no gametophyte step. Embryos formed from synergids or antipodals are a different kind of apomixis, and an embryo from a zygote is normal sexual reproduction. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.