The ability for cells to produce more cells is because of <em>Mitosis and Meiosis.</em>
Explanation:
In a process called mitosis, a cell is split into two parts. Mitosis produces two genetically identical "daughter" cells from the same parent cell. Another type of cell division, meiosis, creates four daughter cells that are genetically separate from each other and from the original parent cell. Only certain cells can perform meiosis: those that will become eggs in women and sperm in men.
Different components of a mixture have different properties on the basis of which we device the method that is used to separate it from other components of the mixture
If you draw the chart that crosses which genes each offspring would receive, the answer would be Rr, rr, rr and rr. With that you would say there is a 1 in 4 chance of getting Rr and 3 in 4 chances of getting rr.