Number of H-bonds in A-T vs G-C base pair:
ABoth 2
B3 vs 2
C2 vs 3 (G≡C has 3 H-bonds, A=T has 2)
DBoth 3
Answer & Solution
Correct answer: C. 2 vs 3 (G≡C has 3 H-bonds, A=T has 2)
A-T: 2 H-bonds. G-C: 3 H-bonds. G-C pairs more stable. DNA regions rich in G-C melt at higher T. Used in PCR primer design and genome analysis (e.g., AT-rich regions denature more easily).
Related questions
In the DNA double helix adenine pairs with:Nucleotides in a chain are joined by which linkage?A base attached to a sugar without phosphate is called a:Which base occurs in RNA but not in DNA?The sugar found in a DNA molecule is:Water soluble vitamins must be eaten regularly because they are:Which set of vitamins is fat soluble?Enzymes speed a reaction by lowering its: