Females

... may have avoided daylight predators. Then, as with many of these kinds of traits, an arms race developed - the brightest lights attracted the most females. And, with any successful trait, there may be others that take advantage of them. There are actually predatory fireflies that imitate the flash ...

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... red male cardinals - they stand out to predators, so it is extremely bad to be bright red. However, the brightest red males attract the most females, so it doesn't matter if they live shorter lives if they leave more babies behind!

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... correct because I am confused. I think this is x-linked recessive is that right :?: since it can fall into this category 1.Usually more males than females are affected. 2. Affected sons are usually born to unaffected mothers; thus, the trait skips generations. 3. Approximately half of a carrier ...

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This might get you partway there. Dystrophin is a sex-linked disease carried on the X (sex) chromosome. It behaves as a recessive in females (who have two alleles for dystrophin) and as a dominant in males (who have only one dystrophin gene on their single X chromosome).

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I know that female mammalians randomly inactivate one X chromosome in somatic cells.So, if a human female was daltonism carrier, would not she be half daltonic?Because, ~1/2 of her cells in retina would have a recessive allele and the other half would have the dominant allele?Or 1/2 is not enough to...

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