The correct answer will be option-It would be more difficult for DNA to unzip since it would require more energy to break the bonds.
Explanation:
The DNA molecule in an organism exists as a double-stranded helical form. These two strands of the DNA are joined via hydrogen bonds formed between the nitrogenous bases on the strands. Two hydrogen bonds are present between A and T while three hydrogen bond between C and G.
These hydrogen bonds provide stability to the DNA as the DNA is the heredity material which has to copied and passed on to the generations
.If two strands would have been joined by any other hydrogen bonds than it would take a high amount of energy to break the bonds between the bases.
The right answer for the question that is being asked and shown above is that: "<span>The reefs are an essential part of the ocean’s ecosystem, and when people build structures on top of them, they are easily damaged because they are so fragile."</span>
