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genetics

chapter 6 vocab

TermDefinition
allele ant of the alternative forms of a gene that occurs at a specific place on a chromosome
trait characteristic that is inherited
gene specific region of DNA that codes for a particular protein
chromosome thread of DNA and proteins that consists of numerous genes and regulatory information
DNA molecule that stores genetic information in all organisms
heterozygous characteristics of having 2 different alleles that appear at the same locus of sister chromatid
recessive allele that is not expressed unless 2 copies are present in an organisms genotype
dihybrid cross, or mating between organisms involving 2 pairs of contrasting pairs
cross mating of 2 organisms
dominant allele that is expressed when2 different alleles are present in an organisms genotype
genotype collection of all of an organisms genetic information that codes for traits
homologous chromosomes that have the same copies of genes al though alleles may differ
monohybrid cross, or mating between organisms that involves only one pair of contrasting traits
genome all of an organisms genetic material
purebread type of an organism whose ancestors are genetically uniform
phenotype collection of all an organisms physical characteristics
homozygous characteristics of having 2 of the same alleles at the same locus of sister chromatids
incomplete dominance heterozygous phenotype that is a blend of the two homozygous phenotype
codominance heterozygous genotype that equally expresses the traits from both alleles
carrier organism whose genome contains a gene for a certain trait or disease that is not expressed in the organisms phenotype
sex linked genes Gene that is located on a sex chromosome
Polygenic Trait that is produced by 2 or more genes
epistasis
Created by: cassidycron
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