Year 12 Biology
Mutation, meiosis and genetic diversity
Gene mutations and their effects, meiosis and how it produces genetic variation, the link between genetic diversity and natural selection, and how adaptations arise and are selected for.
Mutation, meiosis and genetic diversity free practice
No timer and no account needed. Check each answer as you go, then read the explanation.
1. The mRNA codons GGU, GGC, GGA and GGG all code for glycine. A base substitution changes a GGU codon to GGC. What is the effect on the polypeptide?
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