Human egg has no yolk. However human embryo develops an yolk sac. Justiy.

"A human body develops a tail" . Justify.

Write a note on Yolk Sac.

What is the function of yolk sac in a human embryo?

What is the type of embryo sac development in Polygonamy?

The early stage human embryo distinctly possesses

What is the haploid cell which develops into the embryo sac?

In human beings, the eggs are

(a) Draw a shematic labelled diagram of a fertilised embryo sac of an angiosperm. (b) Describe the stages in embryo development in a dicot plant .

In a flower, if the megaspore mother cell forms magaspores without undergoing meiosis and if one of the magaspores develops into an embryo sac, its nuclei would be

Assertion (A): Human ovum is non-cleidoic Reason (R): Human ovum does not contain yolk.