Answer these questions to explore how Szymborska creates the tone of the poem. Cite words and phrases from the poem to support your answers: a.) Does the speaker use formal or informal
language? What is the effect of the choice? b.) What is the speaker's attitude toward the situation he
or she is describing? c.) How does the tone of the poem change beginning with Line 30?

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.