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genetics 1

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Term
Definition
gene   a unit of heredity that occupies a specific location on a chromosome and codes for a trait  
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heredity   the passing of genes from parent to offspring  
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allele   one of the various forms of the same gene  
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phenotype   the observable characteristics of an organism  
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genotype   the name for the genes an organism has  
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dominant allele   the allele that is expressed if it is present  
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recessive allele   the allele that is expressed ONLY if 2 copies of it are present  
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Created by: Mrs Bair
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