2. The allele that causes cystic fibrosis is recessive. An individual who is heterozygous for cystic fibrosisa. cannot reproduce.b. will have children who are all carriers of cystic fibrosis.c. is a carrier.d. cannot have children with cystic fibrosis.
Question
2. The allele that causes cystic fibrosis is recessive. An individual who is heterozygous for cystic fibrosisa. cannot reproduce.b. will have children who are all carriers of cystic fibrosis.c. is a carrier.d. cannot have children with cystic fibrosis.
Solution
The correct answer is c. is a carrier.
Here's why:
a. cannot reproduce - This is incorrect. Being heterozygous for cystic fibrosis does not affect an individual's ability to reproduce.
b. will have children who are all carriers of cystic fibrosis - This is incorrect. While it's possible that their children could be carriers, it's not guaranteed. It would depend on the genetic contribution of the other parent.
c. is a carrier - This is correct. An individual who is heterozygous for a recessive disorder like cystic fibrosis is a carrier. They carry one copy of the mutated gene, but do not show symptoms of the disease.
d. cannot have children with cystic fibrosis - This is incorrect. If the other parent is a carrier or has cystic fibrosis, there is a chance their children could have the disease.
Similar Questions
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Which one of the following statements is TRUE about Cystic Fibrosis (CF)?Group of answer choicesCF exhibits a recessive pattern of inheritance, where, in simple terms, two copies of the mutated gene are required for the disease to occur.CF exhibits a dominant pattern of inheritance, where, in simple terms, two copies of the mutated gene are required for the disease to occur.CF exhibits a dominant pattern of inheritance, where, in simple terms, only one copy of the mutated gene is required for the disease to occur.CF exhibits a recessive pattern of inheritance, where, in simple terms, only one copy of the mutated gene is required for the disease to occur.
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