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Heredity

TermDefinition
heredity the passing of genetic material from parents to offspring
gene segments of DNA found in chromosomes that give instructions for producing a certain characteristic - inherited from parents
allele different versions of a gene-dominant and recessive - identified by uppercase letter and lowercase letter
homozygous an organism with 2 of the same types alleles - dominant or recessive
heterozygous an organism with 1 dominant and 1 recessive allele
genotype the combination of alleles inherited from both parents
phenotype observable traits
dominant contributes to the phenotype if one or 2 copies are present in the genotype
recessive contributes to the phenotype only when 2 copies of it are present
incomplete dominance each allele in a heterozygous individual influences the phenotype
codominance both of the alleles in a heterozygous individual contribute to the phenotype
Punnett Squares a graphic used to predict the possible genotypes of offspring in a given cross - shows all the possible allele combinations in the offspring
pedigree a tool used to study patterns of inheritance - it traces the occurrence of a trait through generations of a family
probability the mathematical chance of a specific outcome in relation to the total number of possible outcomes
ratio an expression that compares two quantities
Created by: KellyKirvin
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