1) Oxygen
2) Carbon
3) Hydrogen (water)
Hope this helps... mark as Brainliest plz
The study of chemical reactions would be in chemistry and not biology so thats the answer
<span>1.) Deletions: A percentage of the chromosome is lost
or removed. </span>
<span>2.) Duplications: A share of the chromosome is
doubled, which results into an extra genetics.</span>
<span>3.) Translocations: A portion of a chromosome
is relocated to an alternative chromosome.</span>