Reproduction in organisms — BIOLOGY STD 12 Science — Question
Gujarat BoardEnglish MediumSTD 12 ScienceBIOLOGYReproduction in organisms1 Mark
MCQ
Reptile and bird eggs are:
✓
Macrolecithal
B
Oligolecithal
C
Mesolecithal
D
Alecithal
✓
Answer
Correct option: A.
Macrolecithal
Reptiles and birds are terrestrial animals.
They lay large yolk$-$rich eggs which are covered with a porous shell.
As the eggs are rich in yolk they can support the development of an embryo.
Hence, embryogenesis occurs outside the body of the animal inside the egg.
Such yolk$-$rich eggs are called as macrolecithal eggs.
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