Who am I? Use the most correct term from the list below to fill in the blanks. Not all terms will be used!    sigma factor, alpha factor, beta subunit, DnaA, terminator, TFIID, TFIIF, TFIIB, TFIIH, stop codon, mediator, RNA polymerase I, RNA polymerase II, RNA polymerase III, connector, lac repressor, trp repressor, enhancer element, activator protein, response element, TATA box, Pribnow box, histone acetylase, histone deacetylase, histone methylase, protein kinase, snRNA, rho, effector, inducer, substrate   Please watch your spelling!   I bind a motif consisting of Ts and As in the promoter; in prokaryotes I am called [1] and in eukaryotes [2].   I provide a connection between proteins bound to regulatory regions that are far apart: [3]   I promote expression by binding an [4] that is located at a large distance from the start of transcription, I am an [5].   One of my functions in eukaryotic transcription initiation is that of a helicase: [6]   I am a small molecule that binds a transcription factor and thereby leads to activation or repression of gene expression: [7]  

Its phosphates are removed when transcription elongation begins

It is phosphorylated by TFIIH

Histone de-acetylation

Questions 21-25. The following chromatin modifications tend to INCREASE rates of transcription:

Capping factors bind when it is dephosphorylated

requires a primer to initiate synthesis

Both enzymes copy all of the DNA in a cell

Questions 26-29. RNA polymerases DIFFER from DNA polymerases in that:

Questions 30-33. The following are chromatin modifications that REDUCE transcription: