Question

what will be the genetic nature of apomictic embryos ? can they be called clones ?

Answer 1

The genetic nature of apomictic embroys is same as that of their parents. Hence they can be called as clones.

Answer 2

$\tt\pink{\underline{Exine}}$

→ It age outer layer of pollen grain and very hard.

→ It age made up of sporopollenin in which is most resistance organic material present in nature .

→Sporopollenin is Resistance to high temperatures stronger acids and alkaline and also to enzyme .