Try doing a little research on calories. Look up the average amount in these five food items: an apple, a slice of bread, a chocolate chip cookie, a slice of cheese and a soft drink. Compare them with one another. Which one is the most energy-rich, and which one has the least energy?

the backbone of the dna and rna compound is sugar phosphate.

the real answer is b. scintillation counter

answer:

sequence 1- deletion

                  2- duplication

                  3- insertion

                  4- substitute

                  5- inversion

i don't know. if i were you, i would search it up online : d