Chromosomes - A single, highly organized and structured piece of DNA., DNA - A molecule that carries the cell’s genetic information. It is found in the nucleus of most cells., Inherited Trait - A characteristic that is passed from parent to offspring., Phenotype - The observable expression of a genotype, Genotype - The actual allele combination of a gene from each parent, Alleles - Different versions of a gene, Genes - The basic physical and functional unit of heredity made up of DNA, Protein - large molecules made of long chains of amino acids that are an essential part of all living organisms. They make body tissues such as muscle, hair, collagen, etc., and substances like enzymes and antibodies, Heterozygous - Possessing 2 different alleles for a trait, Homozygous - Possessing 2 of the same alleles for a trait, Dominant Allele - Inherited characteristic that is always expressed when present, Recessive Allele - Inherited characteristic that is expressed only when no other characteristic is present, Incomplete Dominance - a situation in which one allele is not completely expressed over the other; the expressed physical trait is a combination of the phenotypes of both alleles, Codominance - a situation in which BOTH alleles are completely expressed, Pedigree - A diagram that depicts the inheritance of certain traits within a family, Variant - Different forms or versions of something,

Genetics Vocab

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