Changes in the dna sequence, or mutations, drive

Which of these is not a nucleotide base found in dna?

In response to framton's dialogue about his health issues, mr. sappleton replies: "no? " said mr. sappleton, in a voice which only replaced a yawn at the last moment. then she suddenly brightened into alert not to what framton was saying. what does this statement reveal about how mrs. sappleton feels about framton? a) she finds him boring. b) she's happy he came by. c) she finds him annoying. d) she feels sorry for him

Which property is best to use when determining the strength of an ionic bond in a solid lattice energy conductivity hardness solubility