The different amino acids can code with each other making many different results. even though there are only 4 chemicals, the amount of different links they can make means that they have more than 4variations
Environmental, agricultural, and natural ecosystems.
I'm thinking it might be fossil evidence. Hope it helps!
Has normal (2n) amount of DNA;
Has twice (4n) the normal amount of DNA
Explanation:
1. cell membranes are partialy permeable, only allowing passage to some certain molecules.
2. diffusion is the movement of molecules across partially permeable membrane down concentration gradient.
3. the molecules are too big to pass through partially permeable membrane. the concentration of the molecule might be higher in the cell than in the solution/surroundings.
