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Punnett Squares
Punnett Squares Vocab
Term | Definition |
---|---|
codominant | both alleles of a gene contribute to the phenotype (physical appearance) of the organism |
trait | specific characteristic that varies from one individual to another |
gene | the sequence of DNA that codes for a protein and thus determines a trait |
dominant | masks the other trait; the trait that shows if it is present |
allele | the different possibilities for a given trait |
recessive | a trait that shows up when the dominant allele is not present |
homozygous | an organism that has two identical alleles for a particular trait (TT or tt) |
punnett square | a diagram showing the gene combinations that might result from a genetic cross |
heterozygous | an organism that has two different alleles for the same trait (Tt) |
probability | the chance that a given event will occur |
incomplete dominance | one allele is not completely dominant over another |