Reptile and bird eggs are

Options

A. Macrolecithal
B. Oligolecithal
C. Mesolecithal
D. Alecithal

Answer

A

Explanation

Type of eggs based on the quantity of yolk.
1. Alecithal eggs: Egg is almost free of yolk. e.g.: Eutherian mammals (Human), Marsupial (Kangaroo)
2. Microlecithal or oligolecithal eggs : Contains very small amount of yolk, e.g.: Rabbit, amphioxus, sea urchin, tunicates.
3. Mesolecithal eggs: Contain considerable amount of yolk. e.g.: Petromyzon, frog and lung fishes.
4. Macrolecithal or Polylecithal: Eggs contains large amount of yolk. e.g.: Insects, sharks, bony fishes, reptiles, birds and prototherian mammals.