C. acidic because anything with a pH of less than 7 is acidic
Keep the open end of a test tube facing away from your body at all times
DNA is like the instruction manual for building and operating a cell.
Before a cell divides, its DNA is replicated (duplicated.) Because the two strands of a DNA molecule have complementary base pairs, the nucleotide sequence of each strand automatically supplies the information needed to produce its partner.
