Question
Select the correct explanation for the fact that a carrier of a recessive genetic disorder does not have the disorder.
The dominant allele for the gene determining the disorder represses protein production from the recessive allele.
Affected individuals have recessive mutations, but a carrier has a dominant mutation.
In a recessive disorder, only a single functioning allele is necessary to determine a normal phenotype.
The dominant allele for the gene determining the disorder represses protein production from the recessive allele.
Affected individuals have recessive mutations, but a carrier has a dominant mutation.
In a recessive disorder, only a single functioning allele is necessary to determine a normal phenotype.
Answers
GPT-4o mini
The correct explanation for the fact that a carrier of a recessive genetic disorder does not have the disorder is:
**In a recessive disorder, only a single functioning allele is necessary to determine a normal phenotype.**
This means that a carrier possesses one normal (dominant) allele and one mutated (recessive) allele. The presence of the normal allele is sufficient to prevent the expression of the disorder.
**In a recessive disorder, only a single functioning allele is necessary to determine a normal phenotype.**
This means that a carrier possesses one normal (dominant) allele and one mutated (recessive) allele. The presence of the normal allele is sufficient to prevent the expression of the disorder.