These questions cover mutations as trial papers test them: mutagens, point and chromosomal mutations and their effects on proteins, somatic and germline mutations, coding and non-coding DNA, and how mutation feeds the gene pool. Codons used: GAG = Glu, GUG = Val, UGG = Trp, UGA and UAG are stop codons. They start easy and get harder. Stuck? Tap Show a hint for one step at a time.
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