Question

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.

Answer 1

the middle one, AUGACCCACCCGA

Answer 2

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.