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Eggs of egg laying mammals are
Eggs of egg laying mammals are
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The correct option is A Macrolecithal
Many animal eggs contain yolk, a mixture of proteins, phospholipids, and fats, that serves as food for the developing embryo. The amount and distribution of yolk vary among different animal groups, depending on the needs of the embryo. Mammalian eggs have very little yolk because the embryo obtains maternal nutritional support throughout most of its development; whereas the eggs of birds and reptiles must contain sufficient yolk to sustain the embryo until hatching. The eggs of reptiles and birds are hence macro or megalecithal. Similar is the case with primitive egg-laying mammals, like a platypus.
Many animal eggs contain yolk, a mixture of proteins, phospholipids, and fats, that serves as food for the developing embryo. The amount and distribution of yolk vary among different animal groups, depending on the needs of the embryo.
Mammalian eggs have very little yolk because the embryo obtains maternal nutritional support throughout most of its development; whereas the eggs of birds and reptiles must contain sufficient yolk to sustain the embryo until hatching. The eggs of reptiles and birds are hence macro or megalecithal. Similar is the case with primitive egg-laying mammals, like a platypus.
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