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Genetics

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by

Andrew Whitsett

on 30 April 2010

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Transcript of Genetics

GENETICS The study of how traits are based from parents to offspring Gregor Mendel The father of modern genetics. Studied peas in mid 1800s. Discovered some traits were visible and others were not. TRAITS Physical characteristics that an organism inherits from its parents. Genotype Gene combination represented using letters TT Tt tt Homozygous To have the same alleles for a trait, also called purebred. Heterozygous To have both the dominant and recessive alleles for a trait, also called hybrid. Dominant The trait that will always appear if present in a gene combination. Recessive A trait that will only appear if a dominant trait is not present. Phenotype What genes look like physically, their physical appearance. TT tt Tt T t
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