alleryStart learning →What passes through the pores of the nuclear envelope?
AOnly water and dissolved gases
BOnly newly folded protein chains
CIons, molecules and RNA strands
DOnly ribosomal DNA sequences
Answer & Solution
Correct answer: C. Ions, molecules and RNA strands
1. Pores punctuate the nuclear envelope.
2. They control which ions, molecules and RNA move between nucleoplasm and cytoplasm.
3. Ribosomal subunits assembled in the nucleolus also leave through these pores.
4. The traffic is therefore far wider than water alone, and it moves in both directions.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 4 "Cell Structure", section 4.3 Eukaryotic Cells_
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