Which statement is true about two atoms of carbon that have the same number of neutrons?   a. they are the same isotope.   b. they have a different number of protons.   c. they have different number of neutrons.   d. their atomic numbers are different.

A

Explanation:

the point of difference in isotopes is the number of neutrons. since they have the same number of neutrons, they are the same isotope.

is in the form atp or adenosine triphosphate

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.