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  4. Types of RNA polymerase required in nucleus of eukaryotes for RNA synthesis

Q. Types of RNA polymerase required in nucleus of eukaryotes for RNA synthesis

 3923  198 AIPMTAIPMT 2001Molecular Basis of Inheritance Report Error

Solution:

Enzyme involved in transcription is RNA polymerase. It is single in prokaryotes. There are three types of RNA polymerases in eukaryotes - polymerase for 28S, 18S and 5.8S RNA, polymerase II for wRNA and snRNA and polymerase III for /RNA, 5SRNA and scRNA. RNA polymerase has five polypeptides - a, a, P, P' and (0. s or sigma factor recognises the promoter region while the remaining or core enzyme takes part in ; transcription.