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Intro to Genetics

Introductory terms for middle school genetics

TermDefinition
Genome an organism's complete set of genetic material (DNA)
Chromosomes DNA in multicellular organisms existing as multiple strands within the nucleus
Homologous chromosomes pairs of chromosomes; humans have 23 pairs
Genes segment of a chromosome that codes for a specific trait; found at a specific location along a chromosome
Alleles pairs of genes that control a trait; all sexually reproducing organisms have two for every gene
Phenotype physical appearance of traits of an organism; determined by the genotype
Genotype genetic makeup of an organism; actual combination of alleles (ex. AA, Aa, aa)
Created by: brittni.dell
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