Match Each Term with Its Definition

Multiple Choice

Match each term with its definition.
-repressor

A) regulatory protein that activates the expression of an operon's genes
B) interfering RNA molecules originally encoded by nuclear DNA
C) process of controlling the expression of genes that takes place at the DNA level
D) regulatory protein that prevents an operon's genes from being expressed
E) inhibition of transcription via DNA methylation
F) interfering RNA molecules associated with some viral life cycles
G) tumour comprising cells that invade and disrupt the surrounding tissues
H) increases expression of an operon's genes
I) cluster of prokaryotic genes and their associated DNA regulatory sequences
J) tumour comprising undifferentiated cells that stay together in a single mass
K) spread of malignant cells through the blood or lymphatic system
L) removes a nucleosome from DNA to expose a promoter