Question

Identify the statement that most accurately and completely describes codominance and incomplete dominance with respect to heterozygotes? A. Incomplete dominance – heterozygotes express a third phenotype that is in-between the homozygous phenotypes because the expression of one dominant allele looks different than the expression of two dominant alleles. Codominance – heterozygotes express the phenotype for both alleles. B. Incomplete dominance – heterozygotes express a third phenotype that is different from both homozygous phenotypes. Codominance – heterozygotes express the homozygous recessive phenotype because another gene at a different locus affects the expression of the dominant allele. C. Incomplete dominance – heterozygotes express a blended version of both dominant and recessive alleles and if crossed with another heterozygote their offspring can never express a homozygous phenotype. Codominance – heterozygotes weakly express the homozygous dominant phenotype because there is only one copy of the dominant allele. D. Incomplete dominance – heterozygotes express a little of each allele because both are present in the genotype. Codominance – heterozygotes express the dominant phenotype in some cells and the recessive phenotype in other cells. E. Incomplete dominance – heterozygotes express a third phenotype that affects multiple traits. Codominance – heterozygotes express neither the dominant or recessive allele but express a hybrid of both alleles instead.

Identify the statement that most accurately and completely describes codominance and incomplete dominance with respect to heterozygotes?
A. Incomplete dominance – heterozygotes express a third phenotype that is in-between the homozygous phenotypes because the expression of one dominant allele looks different than the expression of two dominant alleles. Codominance – heterozygotes express the phenotype for both alleles.
B. Incomplete dominance – heterozygotes express a third phenotype that is different from both homozygous phenotypes. Codominance – heterozygotes express the homozygous recessive phenotype because another gene at a different locus affects the expression of the dominant allele.
C. Incomplete dominance – heterozygotes express a blended version of both dominant and recessive alleles and if crossed with another heterozygote their offspring can never express a homozygous phenotype. Codominance – heterozygotes weakly express the homozygous dominant phenotype because there is only one copy of the dominant allele.
D. Incomplete dominance – heterozygotes express a little of each allele because both are present in the genotype. Codominance – heterozygotes express the dominant phenotype in some cells and the recessive phenotype in other cells.
E. Incomplete dominance – heterozygotes express a third phenotype that affects multiple traits. Codominance – heterozygotes express neither the dominant or recessive allele but express a hybrid of both alleles instead.

Added by Brooke F.

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