A person who has cystic fibrosis?
A. Inherited two normal alleles from a parent.
B. Inherited one mutated allele and one normal allele from each parent.
C. Inherited two mutated alleles, one from each parent.
D. Inherited two mutated alleles from a parent.
Is the answer C?
Thanks
Yes.
it is a
Yes, the correct answer is C. A person who has cystic fibrosis inherited two mutated alleles, one from each parent.
To find the answer to this question, you need to understand the pattern of inheritance for cystic fibrosis. Cystic fibrosis is an autosomal recessive genetic disorder, meaning that it is caused by inheriting two copies of a mutated allele from each parent.
Let's break down the options:
A. Inherited two normal alleles from a parent: This option is incorrect because individuals with cystic fibrosis have two mutated alleles, not normal alleles.
B. Inherited one mutated allele and one normal allele from each parent: This option is also incorrect because individuals who inherit one mutated allele and one normal allele are known as carriers of cystic fibrosis. They do not have the disorder themselves but can pass on the mutated allele to their offspring.
C. Inherited two mutated alleles, one from each parent: Yes, this is the correct answer. Individuals with cystic fibrosis inherit two mutated alleles, one from each parent, resulting in the disorder.
D. Inherited two mutated alleles from a parent: This option is also incorrect because individuals with cystic fibrosis inherit one mutated allele from each parent. They do not receive both mutated alleles from only one parent.
So, the correct answer is C.