Question Detail

BIO 101 BIO 101 Past Questions Objective Question
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Question

Which statement best describes codominance?
Options
A Only one allele is expressed
B Traits blend into an intermediate form
C Both alleles are expressed equally in the phenotype
Correct Answer
D Alleles suppress each other completely
Correct Answer

Option C is the correct answer.

Detailed Explanation

In codominance, both alleles at a locus are fully expressed in the heterozygote. The phenotype shows distinct contributions from both alleles, not a blend. An example is the ABO blood type, where the IA and IB alleles are codominant.

Hint

Think of blood type AB.

Question Info

Course: BIO 101
Topic: BIO 101 Past Questions
Type: Objective
Difficulty: Not specified
Question 893 of 2556
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