Genetics Part II Chapter 7.

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Presentation transcript:

Genetics Part II Chapter 7

Autosome inheritance- dominant and recessive (a carrier does not show disease in recessive inheritance)

Sex-linked trait inheritance Genes that are located on the sex chromosomes are called sex-linked traits Examples –Baldness and colorblindness

Incomplete Dominance Incomplete dominance is when the heterozygous phenotype is somewhere between the two homozygous phenotypes

Codominance Codominance is when both alleles of a gene are expressed completely- neither allele is dominant nor recessive

Polygenic Traits Polygenic traits- traits produced by two or more genes

Epistasis An epistatic gene can interfere with the expression of other genes Example- albinism