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Question
The sigma factor is associated with
The sigma factor is associated with
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Solution
The correct option is A RNA polymerase
RNA polymerase is the enzyme of transcription and synthesizes RNA using DNA template strand. It is a complex enzyme with five core subunits and a sixth sigma subunit which binds transiently to the core enzyme and positions it to promoters on the DNA. DNA polymerase III is major polymerizing enzyme with ten types of subunits; polymerization and proofreading activities reside in its alpha and epsilon subunits, respectively. The theta, alpha and epsilon form a core polymerase with polymerization activity but lack processivity which is imparted by clamp-loading complex (two copies of tau, gamma, delta and delta prime subunits). DNA and RNA ligases have single subunit. Correct answer is A.
RNA polymerase is the enzyme of transcription and synthesizes RNA using DNA template strand. It is a complex enzyme with five core subunits and a sixth sigma subunit which binds transiently to the core enzyme and positions it to promoters on the DNA. DNA polymerase III is major polymerizing enzyme with ten types of subunits; polymerization and proofreading activities reside in its alpha and epsilon subunits, respectively. The theta, alpha and epsilon form a core polymerase with polymerization activity but lack processivity which is imparted by clamp-loading complex (two copies of tau, gamma, delta and delta prime subunits). DNA and RNA ligases have single subunit. Correct answer is A.
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