Chapter 10. mRNP Nuclear Export

Animation Activities

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Animation Activity 10-24: mRNP Nuclear Export

1.

A mRNP is comprised of:

mRNA and DNA.

pre-RNA and its bound proteins.

mRNA and RNA pol II.

pre-RNA and mRNA.

mRNA and its bound proteins.

Correct.

Incorrect.

Try Again.

2.

A mRNP travels from the _________ to the _________ via the aid of _________.

cytoplasm; nuclear pore complex; RNA pol II

nucleus; cytoplasm; Npl3

nuclear pore complex; nucleus; an mRNP exporter

nucleus; cytoplasm; an mRNP exporter

cytoplasm; nucleus; RNA pol II

Correct.

Incorrect.

Try Again.

3.

Dephosphorylation of the Npl3 protein bound to an mRNP complex leads to:

export of the mRNP from the nucleus to cytoplasm.

binding of Npl3 to the mRNP exporter.

correct polyadenylation of the mRNA.

None of the above

All of the above

Correct.

Incorrect.

Try Again.

4.

Preventing phosphorylation of the Npl3 adaptor once in the cytoplasm would result in which scenario?

The mRNP complex remains stuck in the nucleus.

The mRNP complex remains stuck in the nuclear pore complex.

Npl3 remains bound to the mRNP complex.

The mRNA does not achieve complete polyadenylation.

Npl3 and NFX1/NXT1 are recycled back to the nucleus prematurely.

Correct.

Incorrect.

Try Again.

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Chapter 10. mRNP Nuclear Export

Introduction

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