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Science Vocab Ch. 16

Science Vocab Ch. 16 - ScienceVocab 15:13 ,...

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Science Vocab 15:13 Gene   Pool  – A population is a group of individuals of the same species that interbreed.  Because members of a population interbreed, they share a common group of genes  called a gene pool . A gene pool  consists of all genes including all the different alleles  that are present in a population.  Relative   Frequency  – The relative frequency of an allele is the number of times that  allele occurs in a gene pool compared with the number of times other alleles for the  same gene occur.  Single   Gene   Trait  – Among humans, a widow's peak—a downward dip in the center of  the hairline—is a single gene trait . It is controlled by a single gene that has two alleles. Polygenic   Trait   - Many traits are controlled by two or more genes and are, therefore,  called polygenic traits . Each gene of a polygenic trait often has two or more alleles. As a 
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