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Bios 170 Chap 13

Vocab from Chapter 13

QuestionAnswer
A heterozygote’s phenotype is intermediate to those of homozygotes. Incomplete dominance
A phenotypic trait is determined by the additive expression of multiple genes. Polygenic inheritance
A heterozygote expresses both phenotypes encoded by the two alleles. Codominance
A homozygote of this type of gene dies in utero. Lethal
The presence of multiple phenotypes within a population. Polymorphism
When a single gene determines multiple phenotypic traits . Pleiotropy
When two genes combine to determine a single phenotype. Gene interactions
When one gene suppresses the expression of a different gene. Epistasis
This pertains to the DNA in mitochondria and chloroplasts. Non-nuclear inheritance
This refers to the frequency of gene expression within a population. Penetrance
This refers to the degree to which a gene is expressed, when it is expressed. Expressivity
Created by: sw326108
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