In a strain of the bread mould Neurospora crassa\textit{Neurospora crassa}Neurospora crassa, resistance to a certain antifungal agent is mediated by a membrane transporter protein. The mutant allele, pdr-1Rpdr\text{-}1^{R}pdr-1R, is formed due to a 51 base-pair deletion from the wild-type allele, pdr-1Spdr\text{-}1^{S}pdr-1S. The transporter protein coded for by the mutant allele pdr-1Rpdr\text{-}1^{R}pdr-1R is 318 amino acids long.
Calculate the percentage reduction in size of the protein coded for by the mutant allele compared with the protein coded for by the wild-type allele. Give your answer to 3 significant figures and show your working.
12 exam-style questions on AQA A Level Biology Alteration of the sequence of bases in DNA can alter the structure of proteins (A-level only), covering Alteration of the sequence of bases in DNA can alter the structure of proteins (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.