1. Explain why a redundant genetic code helps protect an organism from the effects of mutations.
2. Cystic fibrosis is caused by a mutation in the 250,000-bp CFTR gene. The mature CFTR mRNA is only 6129 nucleotides.
- Why is the mature mRNA so much shorter than the gene from which it was transcribed?
- What is the minimum number of nucleotides required to encode the 1480-residue CFTR protein?