If one synthesized every possible dna molecule, each with 20 subunits, how much would your collection of molecules weigh? the average molecular mass of a dna subunit is 165 g mol−1.

The total mass is 6.03 × 10⁻⁹ g

Explanation:

There are 4 nucleobases that can take the place of each subunit: adenine,  guanine, cytosine and thymine. If each DNA molecule has 20 subunits there are 4²⁰ possible combinations. The total mass is:

3

explanation:

under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

i think? ?