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Genetics Vocabulary
Science 7
Term | Definition |
---|---|
Gene | A section of DNA that codes for a specific trait |
Allele | Different versions of the same gene (represented with letters) |
Dominant Trait | A trait that always shows up when its allele is present |
Recessive Trait | A trait that is hidden when the dominant allele is present |
Phenotype | An organism's physical appearance or visible trait |
Genotype | An organism's genetic make-up or allele combinations |
Homozygous | Having two of the same alleles for a trait |
Heterozygous | Having two different alleles for a trait |