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In RNA transcription, which of the following is a part of TBP-associated factor (TAF)?(a) TFIID(b) TFIIB(c) TFIIF(d) TFIIHI got this question in class test.My question is based upon Types of Biological Molecules in section Structures and Functions of Biological Molecules of Cell Biology

Answer» CORRECT choice is (a) TFIID

Easiest EXPLANATION: TFIID includes the TBP subunit which binds to the TATA box along with some other proteins, together known as the TBP-associated factors. TFIIB provides a binding site for RNA Polymerase. TFIIF CONTAINS a special subunit which is bound to the entering RNA Polymerase. TFIIH contains 10 SUBUNITS, 3 of which POSSESS enzymatic activity.


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