Diversity in the environment and adaptation to changes in it
SS=1/4 Ss=2/4 ss=1/4, hope this helps :)
Answer: Chromosomes
Explanation: Chromosomes contain a cell's DNA. When a cell divides, the chromosomes must replicate. There are two types of cell division. Chromosomes undergo a different process depending on the type of cell division. It is important that chromosomes replicate properly so that each resulting cell has the correct amount of DNA after division.
The identify of the four DNA nucleotides is based on b) covalent bonds.