Its nucleotides...its contains sugar(deoxyribose in DNA and ribose in RNA) phosphate and a nitrogen base(A,C,G,T)
Isn’t it active transport????
Answer:
its the level of acid in substances
you put the amount of a item into a cup and add water.
Explanation:
The answer is A:
The SUGAR-PHOSPHATE CHAINS form the sides, and the BASE PAIRS form the rungs