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22 December, 05:06

What does an egg contribute to the embryo that a sperm does not contribute?

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  1. 22 December, 05:27
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    Mitochondria

    Explanation:

    An egg contributes one half of the chromosomes as well as cytoplasm and cellular mechanisms required for the cell to thrive and replicate. Mitochondria are especially important to the embryo and are only passed from mother to child via the egg (or oocyte). Sperm are basically just DNA packets.
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