Characteristic - Heritable features (Height, Color), Trait - Different variants of characteristics, Allele - alternate version of a gene, Genotype - Genetic makeup, combination of alleles (RR, Rr, rr), Phenotype - Physical appearance of an organism or expression of a trait, Homozygous - BB or bb, Heterozygous - Bb, Dominant Allele - Allele that masks other alleles, Big letter, R, B, X, Recessive Allele - Allele that is unexpressed in heterozygotes, small letters, r, b, x,

Mendelian Genetics Intro

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