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Whats the difference between a genotype and a phenotype?

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July 21, 2010 7:05AM

A genotype is the information carried by an organism in it's DNA... essentially the information carried as genes.

ie. you may have a genotype of Bb for a a particular gene, let's say brown hair (one dominant allele, and one recessive allele)

A phenotype is the expression of those genes according to biology's central dogma of

DNA -->RNA-->proteins.

ie. you are expressing the dominant gene of "B" therefore your phenotype is brown hair