The option D) 'Every cell has a nucleus that contains genetic material' is not a part of the cell theory.
Explanation:
The cell theory has three main postulates which are:
All living things are made up of a cell or different cells.
All cells arise from pre-existing cells
Cells are the basic unit of life.
The cell theory does not claim that every cell shall have a nucleus. The prokaryotes lack a nucleus yet still are living things. However, all cells will have genetic material in the form of DNA or RNA
Both of the Hibiscus plants have different colors, when mixing both the blue and yellow gene the younger plants combined the genes and make the color green.
