The answer is approximately 42.57 kDa. The average weight of an amino acid is 110 Daltons. Therefore, a generic amino acid of 387 amino acids will have 110 *387 = 42570 Daltons. 1000 Daltons is equal to 1 kDal. Therefore 42570/1000 = 42.57 kDa
2. reaction 3. body functions
Explanation:
6CO2 + 6H2O => C6H12O6 + 6O2
During photosynthesis, carbon dioxide gas and water reacts in the presence of sunlight to produce glucose and oxygen gas.
That would be Directional Selection so the answer is D.