transcriptional ground state

heterochromatin

euchromatin

hypersensitive site

enhancer

upstream activator sequence (UAS)

general (basal) transcription factor

DNA-binding transactivator

coactivator

TATA-binding protein (TBP)

high-mobility group (HMG) protein

Mediator complex

combinatorial control

insulator

enhanceosome

gene silencing

imprinting

parthenogenesis

dosage compensation

Barr body

X chromosome inactivation

X inactivation center (XIC)

dosage compensation complex (DCC)

hormone response element (HRE)

G protein–coupled receptor (GPCR)

second messenger