Question

How does the nucleus control which proteins are made by the ribosomes?

Answer 1

The nucleus controls which proteins are made because your DNA has a certain pattern of A-T and C-G. These patterns get transcribed and translated to create mRNA to create your proteins on the ribosome.

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Answer 2

It depends on the genes that are transcribed in the cell. Genes are transcribed into messenger RNA molecules (mRNAs) that are translated into proteins in the ribosomes. Gene transcription is a fundamental cellular mechanism that depends on transcription factors which bind target promoter regions