Biological Calculations
I think almost everything is correct except for the last part.
The reason one may easily overlook that part is that we inherit the complete 22 molecules from our mother who inherited the whole 2.35 * 10^10 molecules from her grandmother zygote. Grandma gave the whole thing to her daughter and that that number was distributed in all the cells in mom's body, which is 22 per cell. These 22 lipid molecules would be inherited by us from our mom, so the answer seems to be 22 logically.
This can be understood easily as given below:
2.35*10^10 -&gt; From granny to mommy
22 -&gt; From mommy to us
Hope this made sense... Thanks!