Question

There are 2 strand of dna named as strand 1 and strand 2. Strand 1 has 30% of at and 70% of gc component while strand 2 has 45% of at and 55% of gc component. Both strand are heated at 90 degree temperature. Which strand will be



1. Most stable



2. Least stable



3. Reason for the above 1 and 2

Answer 1

strand 1 is more stable because gc is in more amount, one gc have 3 hydrogen bonds

while strand 2 is less stable due to presence of less gc