Question 1 (2 points) According to the selection from I Know Why the Caged Bird Sings, what work did Momma (the narrator's grandmother) do before she built the Store? a. She managed the barbershop. b. She worked at the lumberyard." d! She baked for the town restaurant. d. She sold lunches to local workers.​

It you understand the origins

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.