Cystic fibrosis is a genetic disorder controlled by a single gene and it follows a simple recessive inheritance pattern.If C is the dominant allele (lacking cystic fibrosis) and c is the recessive allele (having cystic fibrosis) then which of the following statements are correct?CC – will suffer from the disease and can pass it on to offspringCc – will not suffer from the disease but can pass it on to offspringcc – will not suffer from the disease but can pass it on to offspringcc – will suffer from the disease and can pass it on to offspring
Question
Cystic fibrosis is a genetic disorder controlled by a single gene and it follows a simple recessive inheritance pattern.If C is the dominant allele (lacking cystic fibrosis) and c is the recessive allele (having cystic fibrosis) then which of the following statements are correct?CC – will suffer from the disease and can pass it on to offspringCc – will not suffer from the disease but can pass it on to offspringcc – will not suffer from the disease but can pass it on to offspringcc – will suffer from the disease and can pass it on to offspring
Solution
The correct statements are:
Cc – will not suffer from the disease but can pass it on to offspring
cc – will suffer from the disease and can pass it on to offspring
Explanation:
In the context of this genetic disorder, cystic fibrosis, the dominant allele (C) does not have the disease, and the recessive allele (c) does.
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Individuals with CC have two dominant alleles, so they do not have the disease and cannot pass it on to their offspring.
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Individuals with Cc have one dominant allele and one recessive allele. They do not have the disease because the dominant allele "overrides" the recessive one. However, they can pass on the recessive allele (and thus the potential for the disease) to their offspring.
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Individuals with cc have two recessive alleles, so they have the disease and can pass it on to their offspring.
Similar Questions
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