Multiple Choice
If a male inherits a sex-linked gene for color blindness, __________.
29. Heredity
Patterns of Inheritance
Struggling with Anatomy & Physiology?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Codominant alleles are present in __________.
A
polygene inheritance
B
sex-linked inheritance
C
multiple-allele inheritance
D
dominant-recessive inheritance
Verified step by step guidance1
Understand the concept of codominant alleles: Codominance occurs when two different alleles at a locus are both fully expressed in a heterozygous individual, resulting in a phenotype that shows both traits equally.
Identify the types of inheritance patterns: The problem mentions polygene inheritance, sex-linked inheritance, multiple-allele inheritance, and dominant-recessive inheritance.
Review multiple-allele inheritance: This is a type of inheritance where more than two alleles exist for a particular gene, but an individual can only have two of these alleles. Codominance can occur in this context when two alleles are equally expressed.
Consider examples of codominance: A classic example is the ABO blood group system in humans, where both A and B alleles are codominant, resulting in the AB blood type.
Conclude that codominant alleles are present in multiple-allele inheritance, as this is the context where codominance is typically observed, allowing both alleles to be expressed equally in the phenotype.
Related Videos
Related Practice
Patterns of Inheritance practice set
Problem sets built by lead tutorsExpert video explanations