Condition in which gametes which fuse differ in size and/or motility. In OOGAMY, gametes differ in both properties. Significantly, the sperm often contributes the sole centriole for the resulting zygote.
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... of sperm competition theory was that sperm competition selected for the evolution of numerous, tiny sperm, and that this force maintained anisogamy . Here, we empirically test this prediction directly by using selective breeding to generate controlled and independent variance in sperm ...
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