超星 - Unit Test 11

单选题

The specific DNA sequences to which the transcription factors bind are referred to as _____

A.replication elements
B.blocking factors
C.transcription factors
D.regulatory elements

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单选题

The TATA box is often used as an indicator of the presence of a promoter.

A.True
B.False

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单选题

You wanted to study the assembly of preinitiation complex in eukaryotes. This is by the means of DNA-protein interaction. Which of these methods you can’t absolutely put in use there?

A.Footprinting
B.Crystal structure
C.EMSA
D.Primer extension

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单选题

While performing EMSA, in which situation will you see the band highest?

A.You add TFIID, TFIIA and polymerase
B.You add TFIID, TFIIB, TFIIF and polymerase
C.You add TFIID, TFIIA, TFIIF and polymerase
D.You add TFIIA, TFIIB, TFIIF and polymerase

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单选题

For mutagenesis without PCR, which of the following can be used as a template?

A.Single stranded DNA
B.Double stranded DNA
C.Circular DNA
D.Both single and double stranded DNA

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