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What is the different between a dominant and recessive trait?



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A dominant trait is a trait that shows up in the offspring (when mixed with a recessive trait the dominant trait shows up). As for a recessive trait will only whow up if both parents pass on the genes for the trait, when mixed a dominant trait the recessive trait doesn't show up. For example, if one parent passed on the gene for tongue rolling and the other parent passed on the gene for non-toungue rolling, the offspring would be able to role their tongue because tongue rolling is a dominant characteristic.