HEREDITY
MUTATIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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These mutations are a direct result of a change in the amino acid molecule that controls the formation of genetic codes in gametes.
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These mutations are caused by a change in the sugars that make up the genetic codes in all cells.
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Both of these mutations involve a change in the makeup of genes.
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Both of these mutations are a result of the incorrect synthesis of the proteins that make up DNA.
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Detailed explanation-1: -Mutations in the CFTR gene cause the CFTR protein to malfunction or not be made at all, leading to a buildup of thick mucus, which in turn leads to persistent lung infections, destruction of the pancreas, and complications in other organs. Cystic fibrosis is an example of a recessive disease.
Detailed explanation-2: -Which statement best explains the formation of the mutations that cause both cystic fibrosis and skin cancer? These mutations are a direct result of a change in the amino acid molecule that controls the formation of genetic codes in gametes.
Detailed explanation-3: -Cystic fibrosis is caused by mutations, or errors, in the cystic fibrosis transmembrane conductance regulator (CFTR) gene, which result in either no CFTR protein being made or a malformed CFTR protein that can’t perform its key function in the cell.
Detailed explanation-4: -All people have two copies of the CFTR gene, and there must be mutations in both copies to cause CF. More than 1, 700 mutations of the CFTR gene have been identified.