Mother-of-pearl

... amount of gene scrambling the rearranging of the chromosome territories may have already produced a noticeable morphological change. The mother of a child with this large a fusion might have been able to tell there was something unique about them but would be expected to still love them ...

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... size). Neither of these examples resulted in speciation. It normally takes multiple such events to make a population different enough from the mother population to stop mating with that mother population. The creation of a population that either cannot or will not bred with the original is ...

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... because it would ensure the greatest number of offspring. In addition, one might argue that men would be less likely to care for the child of a mother whose spouse had died because he did not share the genetic material of the offspring. More recently, the thinking has reversed. First, the thought ...

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As far as I know, all antibodies are shared between mother and infants. However, only the antibodies are shared, and their life is limited, so the mother's immunity is not transfered in a stable manner to the kid. So they need to be vaccinated later.

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Why are chicken pox antibodies not shared by the mother during pregnancy via passive immunity? Or are they? If so, why are they not effective in blocking this disease?

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