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Genetics

Science Unit 1 and 2

TermDefinition
heredity the passing of traits from parents to offspring
genetics the study of the passing of traits from parents to offspring
allele different forms of a trait that a gene may have
gene a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring
dominant a stronger allele
recessive a form that seems to disappear/weaker allele
homozygous 2 of the same alleles
heterozygous 2 different alleles
phenotype a trait you see
genotype actual gene
hybrid an organism that gets it info from 2 different places
Gregor Mendel the "Father" of genetics
punnett square a tool to predict result in Mendelian genetics
polygenic inheritance -many genes determine a trait -gives us a variation in traits
incomplete dominace 2 dominant alleles blend to make a intermediate phenotype
sex-linked gene only gene found on sex chromosomes XX-FEMALE XY-MALE
recessive genetic disorder a disorder that both parents would have to carry for the offspring to get the disorder
pedigree a family tree
multiple alleles more than 2 alleles that give more possible combonations
Created by: Livi Mess
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