What are the answers to the assignment questions of the text "showdown in little rock"

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.

Ibelieve the topic sentence is [1] keeping my mind on my writing is not easy when i stay at my grandfather's ocean-side cottage. hope this : )