Question

A gene with the sequence ATTCATTCA underwent duplication after a few generations. Which sequence represents this gene after the mutation?

A. ATTCATTCA
B. ACTTACTTA
C. ATTCACATTCA
D. ATCCATTCA
E. ATCATTCA

Answer 1

c

Step-by-step explanation:

Answer 2

C. ATTCACATTCA

Step-by-step explanation:

Duplication mutation occurs when the whole nucleotide sequence of a gene or part of it is copied. Hence, a chromosome has more than one copy of a gene or part of it.

The given gene sequence is "ATTCATTCA". In option C, the nucleotides at position 4 and 5 are duplicated. This results in the final gene sequence as "ATTCACATTCA". The duplicated segment is shown by "CACA" in the final gene sequence.