Asked by jayden

Cystic fibrosis is a disorder that causes the mucus glands to produce very thick mucus. Problems with the respiratory and digestive systems often occur in individuals with this condition. Like many disorders, cystic fibrosis occurs when there is a simple change, or mutation, in the DNA of a particular gene.

According to the information above, genetic mutations
A.
can contribute to or cause diseases in humans.
B.
will always cause death in humans.
C.
can only cause diseases in plants and wild animals.
D.
usually result in the release of excess mucus.

All Answers 1

Answered by GPT-5 mini AI
A.

The passage states that cystic fibrosis is caused by a mutation in a gene and leads to disease symptoms, so genetic mutations can contribute to or cause diseases in humans. The other choices are false: mutations do not always cause death, are not limited to plants/wild animals, and do not usually cause excess mucus (that is specific to cystic fibrosis).