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Mendelian Inheritance in Humans

Pedigrees are used to study if a trait is dominant or recessive and autosomal or sex-linked.

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Mendelian Inheritance in Humans
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Vocabulary

genetic trait

genetic trait

Characteristic that is encoded in DNA.
pedigree

pedigree

Chart showing how a trait is passed from generation to generation within a family.
red-green color blindness

red-green color blindness

A recessive X-linked trait that causes individuals to be unable to distinguish between the colors red and green.
sex-linked trait

sex-linked trait

Trait controlled by a gene located on a sex chromosome.
X-linked trait

X-linked trait

Trait controlled by a gene located on the X chromosome.

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