TRANSCRIPTION QUIZ

Which of the following component of RNA polymerase facilitates the recognition of promoter sequences?

s subunit

c subunit

b subunit

a subunit

TRUE ANSWER : ?
YOUR ANSWER : ?

The components found in all prokaryotic transcription terminators is

none of these

Rho factor

a hairpin structure

a poly-U region

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following enzyme(s) is/are required for lactose fermentation?

Transacetylase

All of these

Galactoside permease

β-galactosidase

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of these catalyzes the synthesis of RNA from a DNA template?

DNA ligase

RNA polymerase

DNA gyrase

DNA polymerase

TRUE ANSWER : ?
YOUR ANSWER : ?

An mRNA transcript of a gene contains

a start codon

a stop codon

all of these

a terminator

TRUE ANSWER : ?
YOUR ANSWER : ?

Which eukaryotic RNA polymerase makes tRNA's?

RNA polymerase 2

RNA polymerase 1

RNA polymerase 3

Any of these

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YOUR ANSWER : ?

A specific __________ factor helps RNA polymerase bind to late promoters and transcribe late genes.

beta

delta

sigma

gamma

TRUE ANSWER : ?
YOUR ANSWER : ?

The synthesis of mRNA based on a DNA template is called

transcription

translation

DNA restriction

DNA replication

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following enzyme is used for synthesis of RNA under the direction of DNA?

RNA polymerase

RNA ligase

DNA polymerase

DNA ligase

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following statement defines a replicon?

A DNA template which is used in transcription

A DNA molecule that is able to replicate and be maintained

The enzyme responsible for transposition

A DNA molecule that encodes pili for conjugation

TRUE ANSWER : ?
YOUR ANSWER : ?

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