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Unit D-2 Vocabulary
Vocabulary words from unit D-2.
Term | Definition |
---|---|
gene | A unit passed down from parent to child that holds information that determines certain characteristics of offspring. |
genetics | The study of heredity and inherited characteristics. |
inherited trait | A trait that is genetically passed down from parent to child. |
acquired trait | A trait that you get or develop from the environment around you. |
trait | A specific quality or attribute that typically sets something apart from something else. |
mutation | An inconsistency in the genes of an organism. Often associated with asexual reproduction. |
allele | Two or more alternate forms of a gene or characteristic. |
dominant | The gene that has a higher chance of appearing in offspring. |
recessive | The “hidden trait” that has less of a chance of appearing in offspring. |
homozygous | Two identical alleles. |
heterozygous | Two different alleles. |
phenotype | The physical appearance of an organism. |
genotype | The genetic appearance of an organism. |
chromosome | Small structures made up of proteins that carry on organisms genetic information/DNA. |
cell division | A process in which a cell splits itself into two identical cells. |
DNA | (Also known as deoxyribonucleic acid) The carrier of a living organism’s genetic information. |
co-dominant | A relationship between two versions of a gene in which neither gene is masked by the other. |
incomplete dominance | A relationship in which two organisms with different phenotypes breed to produce offspring with a third phenotype that is a blend of the parents’ phenotypes. |