Question

Difference between animal pole and vegetal pole.

Answer 1

Sr. No.	Feature	Animal Pole	Vegetal Pole
1.	Location	The animal pole is the region of the ovum where polar bodies are extruded and it serves as the primary site for sperm entry.	The vegetal pole is the region of the ovum located directly opposite to the animal pole.
2.	Composition	This pole contains the cell nucleus and consists of active cytoplasm with a very low concentration of yolk.	This pole is characterized by a high concentration of yolk, which acts as a dense nutrient reserve.
3.	Function	It is the most metabolically active region of the egg and is responsible for initiating rapid cell division (cleavage).	Its primary function is to provide essential nourishment to the developing embryo through its stored yolk.
4.	Developmental Fate	The cells at the animal pole are typically smaller and eventually give rise to the ectoderm (skin and nervous system).	The cells at the vegetal pole are larger and usually develop into the endoderm (internal organs).