GRE Subject Test: Biochemistry, Cell, and Molecular Biology › Help with Nuclear Structure
What is the main function of the nucleolus in eukaryotic cells?
To promote the transcription, processing, and assembly of rRNA genes into ribosomes
To facilitate nuclear transport of proteins and mRNA from the nucleus to the cytoplasm
The site of microtubule assembly during mitosis
Eukaryotic cells do not have a nucleolus
Storage site for transcription factors, RNA polymerases, DNA polymerases, and other transcriptional machinery until transcription occurs
The nuclear lamina is generally associated with __________.
chromatin containing transcriptionally inactive genes
chromatin containing transcriptionally active genes
ribosome synthesis and assembly
heterochromatin and transcriptionally active genes
euchromatin and transcriptionally inactive genes