If an author talks about how much people love dogs and then gives examples of dog types, what should you include in your summary?
A. What kind of dog people should get
B. How much people love dogs
C. All the dog types
D. How many dog types there are

I believe the answer is number two, B.

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.