Okay, biology isn't exactly my strongest subject (it never has been), but I'm pretty sure the answer is nucleotides. DNA is made up of nucleotides. Each nucleotide contains a phosphate group, a sugar group, and a nitrogen base. There are four different nitrogen bases: adenine (A), thymine (T), guanine (G), and cytosine (C). A always pairs with T, and G always pairs with C.
The correct answer would be D my friend had this same question on FLVS and this was correct :)
Answer:
Explanation:
This is because ionic bonds have high melting point because they are held together by strong electrostatic force which hold the opposite charges together. This make the lattice to have lot of ions and alot of energy is required to overcome it, hence they have high melting and boiling points.
Ionic bond is a bind that have electrostatic attraction between atoms of opposite ions.