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Punnett Squares

Punnett Squares Vocab

TermDefinition
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
Created by: leticia.street
 

 



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