Determine whether the sentence below is simple, compound, complex or compound-complex. native son, which is richard wright’s first book, brought him recognition as a writer.

Simple. The sentence is only made up of one clause.

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.