hi, please could someone help me on this question? I identified that the 4th and 20th bases are A and T from left to right. However, after trying all possible options i found that neither 1,2 or 3 are correct however it says that all of the statements are correct? thank you in advance!
The table shows some of the genetic codes for amino acids:
genetic code amino acid coded for
TAG Stop (ends protein synthesis)
The base sequence below shows the middle part of a gene coding for a protein:
A T G C G A G A C A T G T T A A G G T G G G A C C C C C G A G T C
Mutations took place in both the 4th and 20th base in this sequence.
Using only the information provided and reading the sequence from left to right, which of the
following statements could be correct for the resulting amino acid sequence after the two
mutations took place?
1 This sequence could be only six amino acids long.
2 The second amino acid in this sequence could be unaffected by the mutation.
3 This amino acid sequence could contain seven different amino acids.
A none of them
B 1 only
C 2 only
D 3 only
E 1 and 2 only
F 1 and 3 only
G 2 and 3 only
H 1, 2 and 3