Im just guessing so i think its a
Atomic mass = number of protons + numbers of neutrons
Source: My work
Plasma membrane of a living plant cell is a double lipid layer with floating protein molecules. It selectively regulates the passage of substances into the cell and out of the cell. It is also describe by the statement that the plasma membrane of a living plant cell is selectively permeable.
Answer- No
No because your skin color doesn’t only how to do with genes, it also has to do with the genes of grandparents great grandparents etc. in addition to the environment, for example if you live in the tropics, you would have more melanin to help not get burned by the sun because of the adaption of constant sunlight.