Which of the following is an example of an immune escape mechanism used by some tumor cells?

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#Question id: 3880

#Section 3: Genetics, Cellular and Molecular Biology

Which one of the following properties of the L-19 IVS ribozyme is not shared with enzymes that are purely protein?

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#Question id: 3881

#Section 3: Genetics, Cellular and Molecular Biology

Which one of the following statements about mRNA stability is true?

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#Question id: 3882

#Section 3: Genetics, Cellular and Molecular Biology

The reverse transcriptase of an animal RNA virus catalyzes:

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#Question id: 3883

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following is correct about reverse transcriptase:

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#Question id: 3885

#Section 3: Genetics, Cellular and Molecular Biology

AZT (3'-azido-2',3'-dideoxythymidine), used to treat HIV infection, acts in HIV-infected cells by:

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#Question id: 3886

#Section 3: Genetics, Cellular and Molecular Biology

Which one of the following statements about the reverse transcriptases of retroviruses and the RNA replicases of other single-stranded RNA viruses, such as R17 and influenza virus, is correct?