Answer:
9 blue marbles
Step-by-step explanation:
4 : 3 ratio
12 : x
12 / 4 = 3
4 × 3 : 3 × 3
12 : 9
DNA<span> is </span>made<span> up of six smaller </span>molecules<span> a five carbon sugar called deoxyribose, a phosphate </span>molecule<span> which contains these four (adenine, thymine, cytosine and guanine).</span>
B=3
Hope this helps.
Correct me if I’m wrong.
