In a species of Antarctic icefish (Chaenocephalus aceratus), tolerance to extreme cold is enhanced by an antifreeze glycoprotein. A mutant allele, FMF^MFM, is formed due to a 48 base-pair deletion from the wild-type allele, FWF^WFW. The glycoprotein coded for by the mutant allele FMF^MFM is 312 amino acids long.
Calculate the percentage reduction in the size (number of amino acids) of the protein coded for by the mutant allele FMF^MFM compared with the protein coded for by the wild-type allele FWF^WFW. 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.