In codominance, .
a. the genotype is determined by the phenotype
b. the intermediate phenotype may be the result of enzyme insufficiency
c. the heterozygous phenotype is intermediate to the homozygous phenotypes
d. two alleles may be equally expressed e. one allele is dominant to another allele

In codominance, two alleles may be equally expressed (Option d)

Explanation:

In codominance, both alleles can be expressed. In these cases, heterozygote individuals instead of showing an intermediate phenotype, express both of the alleles. Their phenotype is an additive expression of their parents' genes.

the element that provides strength to the exoskeletons of clams and oysters is phosphorus.

this is so because calcium carbonate is the main component in the shells. calcium carbonate is strengthened by phosphorus.

explanation:

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explanation:

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