Question

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

Answer 1

The only sequence which has substantially more nucleotides would be ATTCACATTCA

Answer 2

ATTCACATTCA is the sequence which has more number of nucleotides. Nucleotides are basically called the building blocks of the nucleic acid. Nucleotides are made of three subunit molecules which are a five carbon ribose sugar, a nucleotide base and a phosphate group. The four nitrogenous bases in DNA are adenine, cytosine, guanine, and thymine. RNA contains uracil, instead of thymine.