Answer is Translational control.
Gene expression refers to genes being ‘turned on’ and makes protein as product. Protein can be a structural protein, an enzyme or a control molecule. The protein synthesis rate is proportional to the concentration and translational efficiency of its mRNA. Translational control governs the efficiency of mRNA production. Translational control mechanisms are the most determining for final protein levels.
I'm assuming you mean the molecular compound

and it's name is Hydronium. Hope this helps :)
Answer:
D
Explanation:
The G2/M check point makes sure that <u>all of the chromosomes have been replicated.</u>
- <em>Is all DNA replicated?</em>
- <em>Is all DNA damage repaired?</em>