Question

Study the following sentences and select the correct option.

1. Addition of one or two bases changes the combination of sequence in codons.
2. Addition or deletion of single nucleotide changes the reading frame.
3. The reading frame beyond the point of insertion of three bases remains unaltered.

Options

• i and ii are incorrect.

• i and iii are incorrect.

• Only ii and iii are correct.

• All the statements correct.

Answer 1

All the statements correct.