Mutations in the DFNA20/26 locus,which codes for the actin gamma 1 protein,are associated with congenital deafness.An irate senator complains that government money is being wasted on studies of this mutant gene -- in yeast! "I am no biologist," says the senator,"but I am pretty sure yeast don't have ears." How do you respond?
A)"You are right,Senator -- yeast do not have ears.We should revoke the funding immediately."
B)"We can learn valuable information about the structure of the mutant protein by expressing it in yeast.It is difficult to collect large amounts of actin from tiny hair cells,and unethical to collect it from human patients."
C)"We can learn valuable information about the transcription of the mutant gene in yeast.It is much more difficult to study transcription in human cells."
D)"We can learn valuable information about sound transmission through the mutant yeast.By placing a speaker against a yeast vial and recording sound from the other side,we can infer how the mutant actin affects sound waves."

Question

Quizplus · Accepted Answer

Studying the mutant gene in yeast allows researchers to express and study the mutant protein in a controlled environment, which is difficult to do with tiny hair cells or human patients. Yeast cells provide a reliable and ethical way to study the structure and function of the protein.

Mutations in the DFNA20/26 Locus,which Codes for the Actin Gamma