Methionine
metabolism in Neurospora
Synthesis of
the amino acid methionine in haploid Neurospora
involves four genes on four separate chromosomes
[top] that make four separate enzymes that act on
a precursor (homoserine) and three downstream
metabolities.
91原创work: a met-5- mutant is crossed with a met-3- muutant. Would you expect any of the offspring to grow on minimal media?
91原创work: Would you
expect any of the offspring to grow on minimal media if Cysteine
were added?