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* _________ is necessary to build DNA molecules, as well as RNA.

a. nitrogen
b. carbon
c. phosphorus
d. oxygen


Sagot :

Both DNA and RNA are made from nucleotides, each containing a five-carbon sugar backbone, a phosphate group, and a nitrogen base. DNA provides the code for the cell's activities, while RNA converts that code into proteins to carry out cellular functions.

Answer:

A. Nitrogen is necessary to build DNA molecules, as well as RNA.

A. nitrogen.

B. carbon.

C. phosphorus.

D. oxygen.

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