Molecular Basis of Inheritance Question 22

22. The two polynucleotide chains in DNA are

(a) discontinuous

(b) antiparallel

(c) semi-conservative

(d) parallel.

Show Answer

Answer : b

Hints & Solution

(b) The two chains are antiparallel, one aligned in $5^{\prime} \to 3^{\prime}$ direction the other in $3^{\prime} \to$ 5 ’ direction.