b) cytosine pairs with guanine in both. literally in dna replication,
<em>adenine goes with thymine</em>
<em>thymine goes with adenine</em>
<em>guanine goes with cytosine</em>
<em>cytosine goes with guanine</em>
hope this helps mina! :) <3
The aortic valve prevents backward flow of blood into the left ventricle.
The meatpacking plants were mainly concerned about making money.
Answer: base substitution
Explanation:
Glucose is the ultimate source of energy for plants because it is derived through the energy of the sun.
