Answer:
D. Binding of p53 to Mdm2
It has nothing to do with Xray irradiation.
Explanation:
Mdm2 is a protein regarded as the main regulator of tumor suppressor protein P53. P53 Inactivation by mutation is seen as one of the most frequent alterations in tumors that affects humans.
The central binding p53 site of Mdm2 encloses amino acid. The binding of p53 to the central Domain is strengthened after the process of phosphorylation of the central Mdm2 domains.
The fossil is likely to be a mold fossil as the organism's environment likely consisted of soft, moist terrain.
<span>Food energy comes mainly from carbohydrates, protein, and fat from the food humans eat. Food energy usually comes from carbohydrates and fats rather than proteins. Energy is usually consumed because of various metabolic and enzymatic processes; and any excess in energy is stored as fat (in adipose tissue) and glycogen (in the liver and in muscles). Food energy that are not used are lost as heat<span>.
</span><span><em>Producing heat is not actually a byproduct of the inefficiency of metabolism. Heat is actually used to maintain core body temperature to make sure that thermosensitive enzymatic processes are not inhibited.</em></span></span>
