Expressed

Expressed If an allele for a particular trait is NOT expressed at all when another allele for the trait is present the allele is .?
If an allele for a particular trait is NOT expressed at all when another allele for the trait is present the allele is .?
What is an allele that isn't expressed?What is it called when there are two different alleles for a trait?What is penetrance and expressivity?When bo...