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A bacterium undergoes mutation caused by an antibiotic. Specifically, the gene with the sequence AUGCCCACCCGA undergoes a frameshift mutation. Which of these sequences represents the mutated gene?




AUGGCCACCCGA




AUGACCCACCCGA




AUGCCCUCCCGU


please help? I really need help.

Verified Answer :

the middle one, AUGACCCACCCGA

Histrionicus

Answer:

The correct answer is the AUGACCCACCCGA sequence.

Explanation:

A frameshift mutation occurs when a mutation caused an insertion or deletion in a specific gene sequence that shifts the way the sequence is read. The deletion or insertion can change the reading frame that results in a different translation from the original because of the triplet nature of the codons.

A frameshift mutation is caused by deletion or insertion of a number of nucleotides in a DNA sequence that is not multiple of three. In AUGACCCACCCGA insertion of a nucleotide caused frameshift mutation.

Thus, the correct answer is the AUGACCCACCCGA sequence.