THE MOLECULAR BASIS OF INHERITANCE
DNA MAKES RNA MAKES PROTEIN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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x rays
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radiation
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chemicals
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enzymes
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Detailed explanation-1: -Infrared rays do not cause mutation, hence it will be the correct option.
Detailed explanation-2: -Mutations can result from errors in DNA replication during cell division, exposure to mutagens or a viral infection. Germline mutations (that occur in eggs and sperm) can be passed on to offspring, while somatic mutations (that occur in body cells) are not passed on.
Detailed explanation-3: -Mutations in enzymes can lead to serious or fatal disorders in humans and are the consequence of inherited abnormalities in the DNA of the affected individual. The mutation may be just as a single abnormal amino acid residue at a specific position in an enzyme encoded by a mutated gene.
Detailed explanation-4: -There are three types of DNA Mutations: base substitutions, deletions and insertions. Single base substitutions are called point mutations, recall the point mutation Glu—–> Val which causes sickle-cell disease.