Multiple choice

Egg of frog is:

  1. alecithal

  2. macrolecithal

  3. telolecithal

  4. mesolecithal

  5. none of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Frog eggs are mesolecithal - they contain a moderate amount of yolk that is unevenly distributed (more at the vegetal pole). Alecithal eggs have no yolk (e.g., placental mammals), macrolecithal have abundant yolk (birds, reptiles), and telolecithal is a synonym for macrolecithal. The moderate yolk in frog eggs supports tadpole development.

Keep practicing — related questions