Question

In principle, a eukaryotic cell can regulate gene expression at any step in the pathway from DNA to the active protein. Place the types of control listed below at the appropriate places on the diagram.

A. translation control
B. transcriptional control
C. RNA processing control
D. protein activity control

Answer 1

A eukaryotic cell can regulate gene expression at different steps, such as translation, transcription, RNA processing, and protein activity control.

Step-by-step explanation:

In eukaryotic cells, gene expression can be regulated at multiple steps in the pathway from DNA to the active protein. The types of control mentioned in the question can be placed as follows:

• A. Translation control - This type of control occurs at the step of protein synthesis, after mRNA is transcribed. It can regulate the rate at which the mRNA is translated into protein.
• B. Transcriptional control - This type of control occurs at the step of mRNA synthesis from DNA. It can determine whether or not a gene is transcribed into mRNA.
• C. RNA processing control - This type of control occurs during the processing of pre-mRNA into mature mRNA. It can regulate the removal of introns and the addition of chemical modifications to the mRNA.
• D. Protein activity control - This type of control occurs after the protein is synthesized. It can involve post-translational modifications that affect the activity, stability, or location of the protein.