What is the key to the recognition of codominance?The phenotype of the heterozygote is intermediate between the phenotypes of the homozygotes.The alleles affect more than one trait.The trait exhibits a continuous distribution.The heterozygote expresses the phenotype of both homozygotes.
Question
What is the key to the recognition of codominance?The phenotype of the heterozygote is intermediate between the phenotypes of the homozygotes.The alleles affect more than one trait.The trait exhibits a continuous distribution.The heterozygote expresses the phenotype of both homozygotes.
Solution
The key to the recognition of codominance is that the heterozygote expresses the phenotype of both homozygotes. This means that both alleles contribute to the physical trait and are both visible in the phenotype. For example, in humans, the ABO blood group system is a classic example of codominance. If an individual inherits an "A" blood type allele from one parent and a "B" blood type allele from the other, the individual will have type "AB" blood. Both the "A" and "B" alleles are expressed, hence it is codominant.
Similar Questions
In codominance:Group of answer choicesthe phenotype of the heterozygote (A1A2) resembles the phenotype of one homozygote (A1A1)the phenotype of the heterozygote (A1A2) falls somewhere in between the phenotypes of the two homozygotes (A1A1and A2A2)the phenotype of the heterozygote (A1A2) includes the phenotypes of both homozygotes (A1A1 and A2A2)
What is the key to the recognition of incomplete dominance?The trait exhibits a continuous distribution.The alleles affect more than one trait.The phenotype of the heterozygote falls between the phenotypes of the homozygotes.The heterozygote expresses the phenotype of both homozygotes.
The situation in which the phenotypes of both alleles are exhibited in the heterozygote because both alleles affect the phenotype in separate, distinguishable ways.Group of answer choicescodominanceincomplete dominancecomplete dominanceNext
In a gene expression pattern called ______, the heterozygote has an intermediate phenotype between the homozygotes.
If a cross between heterozygotes for a single trait results in three separate phenotypes, which of the following types of inheritance is the likely reason?Multiple choice question.CodominanceComplete dominanceIncomplete dominance
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