Which of the following is TRUE in the Watson-Crick model of DNA?
A) Four different types of bases are found in DNA.
B) Phosphate groups always bond to ribose.
C) Ribose always bonds to a nitrogenous base.
D) The number of adenines equals the number of guanines.
E) During replication, the phosphate groups are copied but the base sequence is not copied.
A
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a. true b. false