Important Terms

ribozyme (p. 354) ribosomal RNA (rRNA)

(p. 355) pre-messenger RNA

(pre-mRNA) (p. 355) transfer RNA (tRNA) (p. 355) small nuclear RNA (snRNA)

(p. 355) small nuclear ribonucleoprotein (snRNP) (p. 355) small nucleolar RNA (snoRNA) (p. 355)

small cytoplasmic RNA

(scRNA) (p. 356) template strand (p. 357) nontemplate strand (p. 357) transcription unit (p. 359) promoter (p. 359) RNA-coding region (p. 359) terminator (p. 359) ribonucleoside triphosphate

(rNTP) (p. 359) RNA polymerase (p. 360) core enzyme (p. 360) sigma factor (p. 360) holoenzyme (p. 360) RNA polymerase I (p. 361)

RNA polymerase II (p. 361) RNA polymerase III (p. 361) consensus sequence (p. 362) — 10 consensus sequence (Pribnow box) (p. 362) —35 consensus sequence (p. 362) upstream element (p. 363) rho-dependent terminator

(p. 365) rho factor (p. 365) rho-independent terminator

(p. 365) general transcription factor (p. 367)

basal transcription apparatus

(p. 367) transcriptional activator protein (p. 367) core promoter (p. 367) TATA box (p. 367) TATA-binding protein (TBP)

(p. 368) regulatory promoter

(p. 369) enhancer (p. 369) silencer (p. 369) internal promoter (p. 370)

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