Quiz | CancerQuest

Which of the following best depicts the flow of information in cells?

A.

mRNA --> tRNA --> RNA

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B.

tRNA --> DNA --> Protein

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C.

RNA --> tRNA --> Protein

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D.

DNA --> mRNA --> tRNA

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E.

DNA --> RNA --> Protein

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Gene Function

What is the template used to reproduce DNA?

A.

mRNA

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B.

DNA

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C.

Genes

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D.

Cells

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E.

RNA

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Gene Function

Where does transcription occur?

A.

In the cytoplasm

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B.

Outside the cell

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C.

In the nucleus

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D.

In mitochondria

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E.

None of the above

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Gene Function

Transcription is the process during which ______.

A.

Exons are cut out of pre RNA

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B.

RNA is "read" to produce DNA

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C.

DNA is "read" to produce RNA

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D.

DNA is copied to form two copies of the genetic material

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E.

mRNA is "read" and proteins are formed

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The main goal of transcription is to ______.

A.

Copy DNA in preparation for cell division

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B.

Copy DNA into a form usable in translation

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C.

Copy DNA to make a "back up" in case of mutation

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D.

Break down DNA in preparation for cell division

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E.

Make two copies of each chromosome in preparation for cell division

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Correctly order the steps of gene expression: (1) RNA polymerase separates and RNA is released,(2) Transcription factor(s) recognize a promoter,(3) The polymerase enzyme copies a section of DNA, (4) RNA polymerase binds to the transcription factor, (5) The RNA is translated

A.

1, 2, 3, 4, 5

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B.

2, 4, 3, 1, 5

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C.

2, 1, 3, 4, 5

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D.

5, 1, 2, 3, 4

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E.

2, 5, 1, 4, 3

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During transcription, ______ binds to transcription factors, recognizes the start region and makes RNA.

A.

DNA polymerase

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B.

Transcriptase

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C.

RNA polymerase

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D.

Reverse transcriptase

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E.

RNAse

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Initiation of transcription is key to the regulation of eukaryotic gene expression. Transcription begins with the binding of _____to the _____.

A.

Transcription factors, promoter

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B.

RNA polymerase, promoter

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C.

Transcription factors, RNA polymerase

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D.

Promoter factors,mRNA

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E.

mRNA, promoter

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Transcription factors bind to the ______ region of a target gene to initiate transcription.

A.

Transcription factor

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B.

Promoter

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C.

Polymerase

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D.

Terminator

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E.

Transcription Complex

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During protein formation one codon represents one amino acid. How many nucleotides are in one codon?

A.

One

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B.

Two

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C.

Three

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D.

Four

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E.

Five

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