Achange that seems to break a molecule apart is called a

The answer is radioisotopes as this has the ability of breaking molecules apart and aside that, it has the ability of destroying cells and as well as having to damage living tissues in the body because these are isotopes that are unstable.

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.