Question

22 multiple choice 1 point which of the following yeast strains is likely to survive on mva medium? a strain with both adenine 1 and adenine 2 mutations a strain with both trp 1 and trp 2 mutations (trp, tryptophan) a strain with 1 adenine mutation and 1 trp mutation a strain with only typ 2 mutation

Explanation:

MVA (Minimal Vitamin Assay) medium is used to test for auxotrophic mutations, especially related to adenine synthesis. Yeast strains with adenine mutations (adenine 1 and adenine 2) are adenine auxotrophs, but MVA medium typically provides adenine - related nutrients or conditions for adenine - mutant strains to survive. Strains with trp (tryptophan) mutations are tryptophan auxotrophs, and MVA medium is not focused on tryptophan supplementation for survival in the context of adenine - related survival. A strain with both adenine 1 and adenine 2 mutations is related to adenine metabolism, and MVA medium is designed to support adenine - mutant yeast strains. The other options involve trp mutations which are not the focus of MVA medium for survival in the same way as adenine mutations.

Answer:

A strain with both adenine 1 and adenine 2 mutations