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Bio 6.3 & 6.4

6.3 and 6.4 bio vocabulary

TermDefinition
trait characteristic that is inherited
genetics study of the heredity patterns and variation of organisms
purebred type of organism whose ancestors are genetically uniform
cross mating of two organisms
law of segregation Mendel's first law, stating that (1) organisms inherit two copies of genes, one from each parent, and (2) organisms donate only one copy of each gene in their gametes because the genes separate during gamete formation
gene specific region of DNA that codes for a particular protein
allele any of the alternative forms of a gene that appears at a specific place on a chromosome
homozygous characteristic of having two of the same alleles at the same locus of sister chromatids
heterozygous characteristic of having two different alleles that appear at the same locus of sister chromatids
genome all of an organism's genetic material
genotype collection of all of an organism's genetic information that codes for traits
phenotype collection of all of an organism's physical characteristics
dominant allele that is expressed when two different alleles are present in an organism's genotype
recessive allele that is not expressed unless two copies are present in an organism's genotype
Created by: YaeckerE25
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