Class 12 NEET Biology Human Reproduction Questions Part 1

(b) : In human beings, the eggs are alecithal, i.e., they do not contain yolk. Mesolecithal eggs contain moderate amount of yolk e.g., frog. Microlecithal eggs contain a little amount of yolk e.g., Amphioxus. Macrolecithal eggs contain large amount of yolk e.g. birds.