A sample of human DNA is subjected to increasing temperature until major portion of the sample melts. A small portion of the DNA requires even higher temperature compared to rest of the sample. This may be having higher content of
C and G have three hydrogen bonds compared to A and T which have two hydrogen bonds. Hence C-G base pair rich, DNA has high melting temperature.
Adenine and guanine
Cytosine and guanine
Cytosine and thymine
Adenine and thymine