How is codominance expressed? how is codominance expressed? more than two alleles of a gene are present in a population. an intermediate phenotype is produced in the heterozygote. one allele is dominant and masks the other in the phenotype of the heterozygote. both alleles are expressed in the phenotype of the heterozygote.

Both alleles are expressed in the phenotype of the heterozygote.

Explanation:

If both alleles are dominant, then codominance can occur where they are both expressed. If one allele is dominant and the other is recessive, the dominant is expressed while the recessive is masked.

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.