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Chromosome Vocab
Term | Definition |
---|---|
Homozygous | having two identical alleles of a particular gene or genes |
heterozygous | having two different alleles of a particular gene or genes |
allele | one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome |
genotype | the genetic constitution of an individual organism |
phenotype | the set of observable characteristics of an individual resulting from the interaction of its genotype with the environment |
codominance | when two alleles cross over their DNA and the offspring will have mixed traits from both parents |
incomplete dominance | the dominant allele will not fully dominate the trait that it should be affecting allowing the recessive trait to mix with the dominant trait (ie, if dominant allele is blue, and recessive allele is yellow, resulting offspring will have green). |
law of independent assortment | the allele a gamete receives for one gene does not influence the allele received for another gene |
law of segregation | when an organism makes gametes, each gamete receives just one gene copy, which is selected randomly |
hybrid | a heterozygous organism |