Cancer.
The person's offspring will have mutated skin.
The chromosomes would not have replicated, so the resulting daughter cells will not have the correct ploidy.
The stop codon would be introduced prematurely.
This is typically cancer. A disease like this would mess with the way cells reproduce so that replicated cells would come out wrong
Evolution would take place with mutated cells that would eventually differentiate into a second plant. This would happen many times (over millions of years) until you are living in an environment just like ours. It's already happened. Green algae originated all land plants. I'd suggest you start researching there.
Your cells would repair themselves ..
When cells divide, the new cells produced must have a full set of genes in order to function correctly. Genes are made of DNA so it is necessary to replicate (copy) the DNA before the cell divides.
Then you are guaranteed to die as white blood cells make up your immune system. The tiniest bacterium/virus/fungus/mutated cell would thrive immediately and you would die just as fast.
If the cells did not specialize than there would be no chick developing.
24 each. If the parent cell has 24 then the daughter cells would have the same number of cells. Unless you meant they are replicated already.
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There would probably be unlivivng things