The tired traveler carefully brushed the dust off his pants and continued his journey down the country road. which of the following is a prepositional phrase from the sentence above? off his pants his journey carefully brushed the tired traveler

In the sentence "The tired traveler carefully brushed the dust off his pants and continued his journey down the country road" the prepositional phrase would be "carefully brushed the tired traveler" since it is a modifier. 

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.