A living cytoplasmic connection penetrate the walls between sieve tube elements and their companion cells; which are often complex and branched on the companion cell side, known as

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#Question id: 3948

#Unit 3. Fundamental Processes

The following complex of macromolecules is found in a cell: DNA attached to RNA polymerase, attached to a growing chain of RNA, attached to a ribosome, attached to two tRNAs, attached to a growing chain of amino acids. The cell must be:

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#Question id: 3949

#Unit 3. Fundamental Processes

Which of the following observations supports the view that ribosomal RNA has catalytic activity?

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#Question id: 3950

#Unit 3. Fundamental Processes

Which of the following in not true of the nuclear envelope?

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#Question id: 3951

#Unit 3. Fundamental Processes

Which cytoplasmic fibrils are most like the nuclear lamins?

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#Question id: 3952

#Unit 3. Fundamental Processes

What kind of molecules must pass between the nucleus and the cytoplasm?

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#Question id: 3953

#Unit 3. Fundamental Processes

Which statement best characterizes the nuclear localization signal?