All of the following events play a role in yeast-mating type switching except
A)methylation of the silent-mating-type locus.
B)transcription of the gene at the MAT locus.
C)chromatin condensation at the silent mating type locus.
D)a recombination event known as gene conversion.

Question

Quizplus · Accepted Answer

Methylation of the silent-mating-type locus does not play a role in yeast-mating type switching. In yeast, mating type switching involves the transcription of the gene at the MAT locus, chromatin condensation at the silent mating type loci (HML and HMR), and a recombination event known as gene conversion, where information is copied from HML or HMR to the MAT locus. Methylation, commonly associated with gene silencing in eukaryotes, is not a mechanism used in the yeast Saccharomyces cerevisiae for mating type switching.

All of the Following Events Play a Role in Yeast-Mating