Hi!
Your answer is Carbonic acid wearing away the minerals in a rock.
Hope this helps!
~CoCo
Answer:
You have 20% of adenine. If you have 20% of adenine than you have 20% of thymine, because the amount of adenine and thymine is equal. 20% plus 20% is 40% of adennine and thymine. From 100% DNA bases subtract 40% and you will get 60%. Then divide this by 2 and you will get 30%. 30% of guanine and 30% of cytosine, because their amounts are equal in the DNA stand.
Explanation:
The chromosomes become more compact and tightly coiled. They are ready to separate. :)
Hope this helps!
