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
Adenine and guanine
Cytosine and guanine
Cytosine and thymine
Adenine and thymine
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.