Answer:
I would say Phosphate Groups.
Explanation:
Nucleotides are joined together by covalent bonds between the phosphate group of one nucleotide and the third carbon atom of the pentose sugar in the next nucleotide.
Answer:
Nucleic Acids
Explanation:
Nucleic acids link together to form DNA, which determines the different traits people have, directly relating to appearance.
1) full, 2) new, 3) gibbous