<prompt> 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 ofAdenine and guanineCytosine and guanineCytosine and thymineAdenine and thymine  <response>: 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. 