Answer:
both the hydrophobic effect and van der Waals interactions.
Explanation:
Hydrophobic interactions refer to the interaction of non-polar groups with each other in the watery medium. Van der Waals interactions are the weak intermolecular forces formed when one molecule induces polarization in the other.
A DNA double helix has the base pair stacked on the top of one another. The adjacent base pairs are separated from each other by a distance of 3.4 angstroms. The atoms of each base pair for van der Waals interactions with each other since they are separated from each other by van der Waal contact distance.
Also, the hydrophobic surfaces of the bases make hydrophobic interactions with each other to stay away from the water. Therefore, Van der Waal interactions and hydrophobic effects both contribute to base stacking.
Simply draw a realistic drawing of the DNA, try to add it as much details as possible. You can also use furnitures or recycling items around you if you're making a model, for example...
you could use fuzzballs or marbles for the outside, and perhaps thin construction tubes for the DNA strands?
Maybe twist paper against a pencil for the outside, with a pencil being used as the DNA strands? I sincerely hope this helped!
Answer:When a wound causes bleeding, the body responds with a positive feedback loop to clot the blood and stop blood loss. Substances released by the injured blood vessel wall begin the process of blood clotting
Explanation:
