The expression of both alleles for a trait in a heterozygous individual illustrates

Codominance

Explanation:

Codominance is the pattern of inheritance when both the alleles of a gene are expressed in a heterozygote. Here, none of the alleles is recessive to other allele and there is no masking of expression of one of the alleles in the heterozygous genotype. Therefore, both alleles express themselves equally in a hybrid.

Examples include I^A and I^B alleles of ABO blood type in humans. These two alleles are codominant and are equally expressed in genotype "I^AI^B". The person with genotype "I^AI^B" is said to have an "AB" blood type.

what is the statement?

the planets have a circular orbit around the sun.