In the Watson-Crick model of DNA structure,the polynucleotide chains ____.
A) are of unequal length
B) are arranged with the bases forming the backbone of the helix
C) form covalent bonds between uracil and adenine
D) are oriented in the same direction
E) are oriented in opposite directions

Question

Quizplus · Accepted Answer

The Watson-Crick model of DNA structure states that the polynucleotide chains are oriented in opposite directions, with the 5' end of one chain aligned with the 3' end of the other chain. This is known as antiparallel orientation.

In the Watson-Crick Model of DNA Structure,the Polynucleotide Chains ____