The answer is most likely to be D, because when the photon hits an electron within a molecule of chlorophyl, the energy from the light excites an electron from its normal energy level to an excited energy level!
A protein's secondary structure is characterized by beta pleated sheets and alpha helices; the primary structure of a protein is the order of amino acids in a polypeptide, which is coded for the DNA of a gene. the secondary structure itself results from Hydrogen bonds, where the electronegative nitrogen and O2 atoms impart the hydrogen atoms with a semi positive charge.
This mutation type is a substitution mutation. Substitution mutations may be silent or may have adverse effects (missense mutation).
Adverse effects come about because the change in codons in mRNA transcribed from the DNA strand. A point substitution can change the amino acid being coded for in the particular polypeptide change. If that animo acid is a structural residue of the protein, the structure of the protein will be altered, which may or may not lead to a change in protein function. If that particular amino acid is a catalytic residue of the protein, it may alter the 3D conformation and charge of the active site (if protein is an enzyme) or the binding site of protein. Function of protein formed from mutated DNA will be lost or altered.
Hope this helps! :)
It is C. a pitcher preparing a throw. Potential energy is essentially the potential for kinetic energy to happen. This is based on position and circumstance. A rounded up pitch has extremely high potential energy because it is about to be converted into a large amount of kinetic energy