AP EAMCET2013ChemistryBiomolecules
The number of hydrogen bonds between guanine and cytosine; and between adenine and thymine in DNA is
Options
- A1.2
- B3,2
- C3,1
- D2,1
Correct answer
B. 3,2
Step-by-step solution
The only possible pairing in DNA are between G (guanine) and C (cytosine) through three H -bonds i.e., ( C G ) and between A (adenine) and T (thymine) through two H -bonds (i.e., A = T ) as shown in figure.