daneayahbriggs82171 daneayahbriggs82171 29-02-2024 Biology contestada A stretch of double-stranded DNA contains 1000 base-pairs (1 kb) and its base composition is 68% (A+T). How many guanine residues are in this DNA?a. 32.b. 320. c. 160. d. 16.e. 680.