Degeneration of DNA after can be studied by comparing

Options

A. A : T ratio
B. G : C ratio
C. Sugar : Phosphate
D. Number of nucleotides

Answer

B

Explanation

The temperature at which the DNA strands are half denaturated is called melting temperature `T_(m)`
The ratio of G to C and A to T in an organism’s DNA is fixed, the GC content (percentage of G + C) can vary considerably from one DNA to another. The percentage of GC content of DNA has significant effect on its `T_(m)`
Because G – C pairs form three hydrogen bonds, the higher the G – C content higher the `T_(m)`