A)binding heterochromatin to prevent transcription B)binding promoter of a gene to start translation C)binding promoter to start transcription D)binding operator to prevent transcription E)binding repressor to prevent transcription
Which component in an operon acts first in expression?
A)structural genes - mRNA transcription B)promoter - where RNA polymerase first binds to DNA C)terminator - last part of a gene D)regulatory gene - codes for the repressor protein E)operator - if unbound,allows RNA polymerase to bind DNA