Ribosomes are made where in the nucleus?

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Prepare for the Virginia 7th Grade Science SOL Test. Incorporate flashcards and multiple choice questions, each with hints and detailed explanations. Ensure your success on the exam!

Multiple Choice

Ribosomes are made where in the nucleus?

Explanation:
Ribosome components are assembled in the nucleolus, a distinct region inside the nucleus where ribosomal RNA genes are transcribed and processed. Ribosomal proteins produced in the cytoplasm are imported into the nucleus, and together with the rRNA they form the small and large ribosomal subunits. Once assembled, these subunits exit to the cytoplasm to join and function in protein synthesis. The nucleus as a whole contains the genetic material, and chromatin is the form of DNA-protein that makes up chromosomes, but the actual assembly of ribosome parts happens specifically in the nucleolus. The nuclear membrane is just the envelope around the nucleus, not the site of ribosome assembly.

Ribosome components are assembled in the nucleolus, a distinct region inside the nucleus where ribosomal RNA genes are transcribed and processed. Ribosomal proteins produced in the cytoplasm are imported into the nucleus, and together with the rRNA they form the small and large ribosomal subunits. Once assembled, these subunits exit to the cytoplasm to join and function in protein synthesis. The nucleus as a whole contains the genetic material, and chromatin is the form of DNA-protein that makes up chromosomes, but the actual assembly of ribosome parts happens specifically in the nucleolus. The nuclear membrane is just the envelope around the nucleus, not the site of ribosome assembly.

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