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Genetics
Term | Definition |
---|---|
genetics | the study of heredity |
heredity | the passage of genetic instructions from one generation to the next |
DNA | A material that contains the genetic information that makes up the chromosomes. |
genes | pieces of DNA found within chromosomes that pass genetic traits from parent to offspring |
trait | A characteristic that an organism can pass on to its offspring through its genes. |
alleles | The possible variations/forms of a gene that control a specific trait |
genotype | An organism's genetic makeup, or allele combinations. Example: BB, Bb, bb |
phenotype | An organism's physical appearance of a trait, or what it looks like Example: eye color |
heterozygous | An organism that has two different alleles for a trait Example: Bb |
homozygous | An organism that has two identical (the same) alleles for a trait Example: BB, bb |