Dominance and Epigenetics

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8 Terms

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Incomplete Dominance

Heterozygous, neither dominant or recessive phenotype is expressed completely

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Examples of incomplete dominance

Pink flowers from red and white flowers

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Co-dominance

Heterozygous, both phenotypes are expressed equally

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Example of Co-dominance

Human blood types, (AB)

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Environmental Factors

Influence how phenotypes developsuch as temperature, nutrition, and stress

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Environmental Factors example

Fur temperature changing due to temperature (darker when it is cold)

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Epigenetics

Describes how molecular events will influence the expression of DNA without altering DNA sequence

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Example of epigenetics

Adding methyl or phosphate groups to DNA