Question

Which of the following is a correct match?

• A. Centrolecithal egg - insect
• B. Megalecithal egg - eutherian mammals
• C. Microlecithal egg - reptiles
• D. Alecithal egg - birds

Answer 1

The correct option is A Centrolecithal egg - insect

Centrolecithal egg, an egg in which the yolk is concentrated near the center of the egg cell, as is the case in many of the insects. Hence, it is correct match.
Megalecithal eggs are those eggs in large amount of yolk is present. Reptiles and birds are examples of this and not eutherian mammals, where alecithal egg is found.
Microlecithal eggs are those eggs in which small amount of yolk is present. Sea urchin, marsupials and amphioxus are examples of this and not reptiles, where megalecithal eggs are found.
Alecithal eggs are those eggs in which small amount of yolk is found. Mammals including humans are example of this and not birds, where megalecithal eggs are found.
Hence, option A is correct, which is only correct match out of given options.