Answer:
b- a genetic mutation must have occurred
Explanation:
If gravity is one third on mars then weight also one third on mars
Answer:
A wave increasing in energy as it hits another wave
<span>Proto-oncogenes are genes that normally help cells grow. When a proto-oncogenemutates (changes) or there are too many copies of it, it becomes a "bad" gene thatcan become permanently turned on or activated when it is not supposed to be. When this happens, the cell grows out of control, which can lead to cancer.....Is this what you need ?</span>
Genetic engineering is the method used to turn of genes that cause defects.