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Chapter 6 vocab

TermDefinition
Allele one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.
Trait a distinguishing quality or characteristic, typically one belonging to a person
Gene a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.
Chromosome a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.
DNA deoxyribonucleic acid, a self-replicating material present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information.
Heterozygous having dissimilar alleles at corresponding chromosomal
recessive relating to or denoting heritable characteristics controlled by genes that are expressed in offspring only when inherited from both parents
dihybrid a hybrid that is heterozygous for alleles of two different genes
cross Mating of two organisms
Dominate Allele that is expressed when two different alleles are present in an organisms genotype
Genotype Collection of all of an organism's genetic information that codes for traits
Homozygous Characteristic of having two of the same alleles at the same locus of sister chromatids
Monohybrid Cross, or matting, between organisms that involves only one pair of contrasting traits
Genome All of an organisms genetic material
Purebred Type of organism whose ancestors are genetically uniform
Phenotype Collection of all of an organisms physical characteristics
Homologous Chromosomes that have the same length, appearance, and copies of genes, although the alleles may differ
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 tats is not expressed in the organism's phenotype
Created by: kendall_tralle
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