Answer:
No, Because muscle tissue is on found inside humans and animals.
A or c. I thought technically it was selective breeding but i haven't done genetics in a while to know what it's actually called
So the the main forces that keep the water on the surface of the planet are to do with plate tectonics. If the plates were to stop moving, the water probably would eventually be absorbed into the interior, although this process would take a very long time indeed.
The repressor protein blocks the genes from making mRNA.