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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Insertion
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Point mutation
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Nonsense mutation
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Deletion
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Detailed explanation-1: -QUESTION. A DNA strand that originally reads 5’-GATATC-3’ undergoes a mutation that changes it to 5’-GATCATC-3’. This is an example of what type of mutation? Insertion is a type of mutation where there is an extra nucleotide bases added or inserted on the chain.
Detailed explanation-2: -So the correct answer is “Palindromic sequence".
Detailed explanation-3: -Such a substitution could: change a codon to one that encodes a different amino acid and cause a small change in the protein produced. For example, sickle cell anemia is caused by a substitution in the beta-hemoglobin gene, which alters a single amino acid in the protein produced.
Detailed explanation-4: -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-5: -Insertion Mutation Examples For example, some diseases caused by insertional mutations include: Fragile X Syndrome. Huntington’s Disease. Myotonic dystrophy.