What makes DNA molecules so stable?
The main bonding in DNA which renders the double helix structure so stable is that of hydrogen bonds. Between the complementary base pairs, hydrogen bonds connect the two strands of the helix. There are 3 H bonds between Guanine and Cytosine and 2 between Adenine and Thymine. As well as this there are hydrogen bonds between the bases and surrounding water molecules, and this combined with the even stronger phosphodiester bonds in the sugar phosphate backbone make DNA very stable.
SA
Related Biology A Level answers
All answers ▸What are the different levels of protein structure and what do they entail?
Describe the process of primary succession
How many carbon atoms do these molecules important in respiration have: Glucose, Pyruvate and Acetate
Describe how the structure of the renal corpuscle facilitates ultrafiltration.