How does the Watson and Crick model of DNA structure help explain DNA replication?
A) Precise base pairing allows the base sequence to be copied.
B) Phosphate groups always bond to deoxyribose sugar. C) Four types of bases are found in DNA.
D) Deoxyribose sugar always bonds to a nitrogenous base.
E) The number of purines equals the number of pyrimidines.

Question

How does the Watson and Crick model of DNA structure help explain DNA replication? 
 A) Precise base pairing allows the base sequence to be copied.
B) Phosphate groups always bond to deoxyribose sugar. C) Four types of bases are found in DNA.
D) Deoxyribose sugar always bonds to a nitrogenous base.
E) The number of purines equals the number of pyrimidines.

anonymous · Answer

@dan815

anonymous · Answer

This one is difficult.  All of the answers are true about the structure of DNA, but which one was new to Watson and Crick?  Really A and E were discovered by Chargaff, but your teacher is most likely looking for A because it explains how the DNA can be a pattern for replication.