A mutation is induced in Neurospora that causes the loss of function of an enzyme essential to the biosynthesis of the vitamin pyridoxine. On which medium will such organisms not grow?
Occasionally, a mutation is discovered that suppresses termination and allows a chain-terminating condon to be read as an amino acid code without changing the condon. What would be most likely effect of such a mutation?
What knowledge can be gained from an understanding of a protein’s function that cannot be deduced by the DNA sequence of the gene that encodes the protein alone?