Zoology - Molecular Basis of Inheritance Question with Solution | TestHub

In a double helix structure of DNA, the bases in the two complementary strands are paired with the help of hydrogen bonds. There are two hydrogen bonds between one adenine and thymine base pairs whereas there are three hydrogen bonds between one guanine and cytosine base pairs. The energy required to break the bond between G-C will be more as compared to energy required for A-T bonds. So the DNA with a maximum number of A-T pairing will melt faster at lower temperature as compared to others.