How Could Scientists Get Chickens to Increase the Expression of the Gene

Multiple Choice

How could scientists get chickens to increase the expression of the gene that regulates beak size?

A) By introducing a mutation into the part of the gene that codes for amino acids
B) By removing introns from the gene
C) By increasing transcription factor binding to the promoter
D) By increasing the size of the gene
E) By increasing the number of exons in the gene