Question

in case of polyembroyny an embryo A develops from synergids and the embryo B develops from nucellus. state the ploidy of embryo A and B

Answer 1

Hey!

Polyembryony is a condition when more than one Embryo is formed from the single fertilized ovum.

Accordingly, we know that the ploidy of Synergids is haploid (n) and that of nucellus is diploid (2n).

Synergids are supporting/guarding egg cell and is 2 in numbers. And Nucellus is in the middle of it.

So, the ploidy of embryo (A) = n

And ploidy of embryo (B) = 2n

Thanks (: