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13 Genetics

QuestionAnswer
Gene Section of a chromosome that codes for a trait
Allele A gene option
Dominant Trait shows if present
Recessive Must inherit 2 copies to show this trait
Environment Can influence the expression of genes
Gene mutation Change in the DNA code
Chromosome mutation Change in the number or structure of chromosomes
Somatic Cells Body cells, Do not pass mutations to offspring
Gametes Sex cells, can pass mutations to offspring
Homozygous Pure, same genes for a trait
Heterozygous Hybrid or carrier; different genes for a trait
Phenotype The physical appearance
Created by: kgarlitz
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