THE MOLECULAR BASIS OF INHERITANCE
GENE MUTATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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THE BAT PAT THE CAT mutated to THE BAT ATT HEC AT. What type of mutation shows here?
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Deletion
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Insertion
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Substitution
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Inversion
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Explanation:
Detailed explanation-1: -It is a type of frameshift mutation characterized by the loss of one or more nucleotides from the segment of DNA. Example of deletion mutation is DiGeorge syndrome. DiGeorge syndrome is a disorder caused due to the deletion of a small segment of chromosome 22.
Detailed explanation-2: -Sequence analysis allows for the interrogation of all bases within a gene and is used routinely by clinical laboratories to detect point mutations and small insertions and deletions.
Detailed explanation-3: -Two frameshift mutations in the CFTR genes cause cystic fibrosis (one involves the insertion of two nucleotides, and the other involves the deletion of one nucleotide).
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