Question

Which type of mutation could have occurred in each type resulting in the following mistakes during replication of the above original sequence? i. 3`… … … …CAT CAT AGA TGA ATC… … …5` ii. 3`… … … …CAT ATA GAT GAA AC… … … 5` b.) How many amino acids will be translated from each of the above strands i) and ii)?

Answer 1

Answer:

1) Deletion of C from the fourth position of first strand.

2) Substitution of T with A( called transversion) at the 14th position of first strand.

3) 5 Amino acids

4) 4 amino acids

Answer 2

Type of mutation and amino acids

Explanation:

(a) i. during this case, mutation, i.e., single base substitution has occurred. In the 5th codon, instead of an ‘AAC’, an ‘ATC’ is present.

ii. In this case, point mutation, i.e., single-base deletion has occurred. In the 5th codon, A is missing in ‘AC’. Therefore, instead of an ‘AAC’, there is an ‘AC

b) 4 amino acids will be translated in both of the above-mentioned cases because; one codon is mutated and hence cannot be translated.