Answer:
DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code
Explanation:
Where is the answer choices?
Answer:
i believe its option D. The host cell.
Hope this answered your question!
The disapperance of many species during a relatively short time is known as extinction
