Which Characteristic is Typical of the Vegetal Pole of an Embryo

Question

Which characteristic is typical of the vegetal pole of an embryo?
A) The vegetal pole is composed of a single, large cell.
B) The vegetal pole is always hollow.
C) The vegetal pole contains relatively less yolk.
D) The vegetal pole has a relatively greater proportion of yolk.
E) The vegetal pole is the site of the development of the mouth.

Accepted Answer

The vegetal pole of an embryo typically has a relatively greater proportion of yolk compared to the animal pole. This is because during fertilization, the yolk is concentrated towards the vegetal pole, which provides nutrients for the developing embryo. The animal pole, on the other hand, contains relatively less yolk and is more involved in cell division and differentiation.