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
UR WRONG BOB!!
Answers:
1.C
2.B
3.A
4.C
How you gonna say bob is wrong and continue to use there answer? You said 4 is C and Bob said C was the answer. I'm going with D makes the most sense.
How you gonna say bob is wrong and continue to use there answer? You said 4 is C and Bob said C was the answer.
The correct answer is C. The person who has cystic fibrosis inherited two mutated alleles, one from each parent.
Cystic fibrosis is a genetic disorder that is caused by mutations in the CFTR gene. This gene provides instructions for making a protein called the cystic fibrosis transmembrane conductance regulator (CFTR). The CFTR protein is involved in the movement of salt and fluids in and out of cells. Mutations in the CFTR gene can lead to the production of a faulty CFTR protein, which affects the functioning of the respiratory, digestive, and reproductive systems.
To determine the inheritance pattern of cystic fibrosis, we need to understand how alleles are passed down from parents to their offspring. Humans have two copies of each gene, known as alleles, with one inherited from each parent.
In option A, if the person inherited two normal alleles from a parent, they would not have cystic fibrosis. Normal alleles do not carry the mutations that cause cystic fibrosis.
Option B states that the person inherited one mutated allele and one normal allele from each parent. In this case, the person would be a carrier of cystic fibrosis, meaning they have one mutated allele but do not have the disorder themselves. Individuals who are carriers can pass the mutated allele to their offspring, potentially leading to cystic fibrosis in future generations.
In option D, if the person inherited two mutated alleles from a parent, they would indeed have cystic fibrosis. Having two mutated alleles is necessary for the disorder to be present.
Therefore, the correct answer is option C, as a person with cystic fibrosis has inherited two mutated alleles, one from each parent.