Chapter 17 Quiz Flashcards


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1
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A codon consists of _____ bases and specifies which _____ will be inserted into the polypeptide chain.

three; amino acid

2
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Where does RNA polymerase begin transcribing a gene into mRNA?

It starts after a certain nucleotide sequence called a promoter.

3
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What is the function of RNA polymerase?

It unwinds the double helix and adds nucleotides to a growing strand of RNA.

4

A ribozyme is a biological catalyst made of RNA.

True

5
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How is translation initiated?

All of the above.