Genetics Vocabulary Review

the science that studies how traits are inherited through the interactions of alleles

• heredity

• genetics

• biology

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the passing of traits from parent to offspring

• heredity

• genetics

• botany

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the genetic make-up; the actual gene pair shown as 2 letters

• genotype

• phenotype

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the physical or visible appearance of an organism; a trait we can see

• genotype

• phenotype

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blue eyes, curly hair - physical traits!

• genotype

• phenotype

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Tt, BB, rr - letters that represent alleles!

• genotype

• phenotype

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stronger version of the trait; you only need one gene for the trait to show up in an organism

• dominant

• recessive

the weaker trait that can be overpowered ; you need 2 genes for the trait to show up in an organism

• dominant

• recessive

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the different forms of a trait that make up a gene, R or r

• allele

• dominant

• recessive

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purebred; the same gene pair

• homozygous

• heterozygous

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