9700/12 Biology Oct Nov 2018 Online Test | Cambridge AS and A Level MCQ
Part of a sequence of DNA from a person with a genetic disease is: TAGTAACCACAAAGG
The corresponding sequence of DNA from a person without this genetic disease is: TAGTAAAAACCACAAAGG
Which amino acid is missing from a person with this genetic disease?
The possible mRNA codons for some amino acids are shown in the table.