The ridge will appear only if there is at least one dominant allele in both groups.
K is another dominant allele of the allelic series which controls feather growth rate.
Genetic analysis has shown that luminescence is controlled by a single dominant allele.
The condition is caused by a dominant allele, or variation, of a single gene.
That is, both loci must have at least one dominant allele to produce the phenotype.
B*2705 was found to be dominant allele associated.
The champagne gene is a simple dominant allele responsible for a number of rare horse coat colors.
The dominant alleles are peucedanoid and dominate in the ephialtoid form.
One copy of the dominant allele is enough to cause the disorder.
Under normal circumstances it is only possible to eliminate a dominant allele from the gene pool.