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Q.
Which animals (mammals) contain more amount of yolk then cytoplasm in their eggs?
BVP MedicalBVP Medical 2013
Solution:
The egg laying mammals, i.e., ovoviviparous mammals belong to the class-Protheria. The eggs of prototherian are poiylecithal or megalecithal, i.e., contain more amount of yolk. The amount of yolk is always comparatively more than cytoplasm.