Which of the following proteins first binds to TATA box during transcription? TF

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Home ‣ Microbiology ‣ Transcription Comments

Question
Which of the following proteins first binds to TATA box during transcription?
Options
A. TF II A
B. TF II D
C. TF II B
D. RNA polymerase

Correct Answer

TF II D

Transcription problems

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1. The components found in all prokaryotic transcription terminators is
Options
A. a poly-U region
B. Rho factor
C. a hairpin structure
D. none of these

Discuss

Correct Answer: a hairpin structure

2. Which of the following component of RNA polymerase facilitates the recognition of promoter sequences?
Options
A. a subunit
B. b subunit
C. s subunit
D. c subunit

Discuss

Correct Answer: s subunit

3. Recognition/binding site of RNA polymerase is called
Options
A. receptor
B. promoter
C. facilitator
D. terminator

Discuss

Correct Answer: promoter

4. Which eukaryotic RNA polymerase makes tRNA's?
Options
A. RNA polymerase 1
B. RNA polymerase 2
C. RNA polymerase 3
D. Any of these

Discuss

Correct Answer: RNA polymerase 3

5. Which of the following enzyme(s) is/are required for lactose fermentation?
Options
A. Transacetylase
B. ?-galactosidase
C. Galactoside permease
D. All of these

Discuss

Correct Answer: All of these

6. Which of the following enzyme is used for synthesis of RNA under the direction of DNA?
Options
A. RNA polymerase
B. DNA ligase
C. DNA polymerase
D. RNA ligase

Discuss

Correct Answer: RNA polymerase

7. An mRNA transcript of a gene contains
Options
A. a start codon
B. a stop codon
C. a terminator
D. all of these

Discuss

Correct Answer: all of these

8. Which of the following is a product of transcription?
Options
A. mRNA
B. tRNA
C. rRNA
D. all of these

Discuss

Correct Answer: all of these

9. A level of regulation, demonstrated by the termination of transcription if tryptophan is abundant, by the tryptophan operon in E.coli cells is called
Options
A. activation
B. attenuation
C. corepression
D. desiccation

Discuss

Correct Answer: attenuation

10. Which of the following statement defines a replicon?
Options
A. A DNA molecule that encodes pili for conjugation
B. A DNA molecule that is able to replicate and be maintained
C. A DNA template which is used in transcription
D. The enzyme responsible for transposition

Discuss

Correct Answer: A DNA molecule that is able to replicate and be maintained

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Which of the following proteins first binds to TATA box during transcription?

Transcription problems

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