The first step of DNA replication is the separation of the two DNA strands to create a replication bubble. DNA Helicase is what breaks the hydrogen bonds joining the two strands, allowing it to unravel.
The correct option is D.
If water density at freezing point is greater, the ice formed will sink to the bottom of the water body and freeze the water up from the bottom. This will surely lead to the death of everything that live inside the water.
The answer is d. all of the above. The amount of nitrogen in the atmosphere can be affected by the inorganic nitrogen fertilizers, sewage treatment plants and pollution coming from factories. Hope this is the answer and this would be of help.
A rock is a solid mass of geological materials. It is a natural mass of mineral matter that makes up the earth's crust.
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Make sure the protons and electrons are eaual
