Modern Genetics
2. Vocabulary Defined
Vocabulary
- allele
- An alternative form of a gene.
- co-dominance
- A pattern of inheritance where both alleles are equally expressed.
- genotype
- The genetic makeup of a cell or organism, defined by certain alleles for a particular trait.
- homozygous
- Having identical alleles for a particular trait.
- heterozygous
- Having two different alleles for a particular trait.
- incomplete dominance
- A pattern of inheritance where the offspring has a phenotype that is halfway between the two parents’ phenotypes.
- phenotype
- The physical appearance that is a result of the genotype.
- polygenic inheritance
- A pattern of inheritance where the trait is controlled by many genes and each dominant allele has an additive effect.