Question

how does the nucleus control the expression of genes in metabolic pathways?

• cytokinesis
• transcriptional regulation
• transduction

Explanation:

• Cytokinesis is the division of the cytoplasm during cell division, not related to gene expression in metabolic pathways.
• Transduction is a process in signal transduction or bacterial gene transfer, not the main way the nucleus controls gene expression for metabolism.
• Transcriptional regulation occurs in the nucleus, where DNA is transcribed to RNA. The nucleus controls which genes are transcribed (and thus expressed) to produce enzymes/proteins for metabolic pathways.

Answer:

B. transcriptional regulation