Biology, 23.08.2020 14:01 gumbyseth1969p45qjl

What chemical force must be overcome in order to separate the two DNA strands during replication?

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Answer from: cristian592

Hydrogen bonds

Explanation:

DNA strands are held together by pair of complementary base pairs with Purines; Adenine and Guanine pairing with Pyrimidine: cytosine and Thymine;therefore Adenine pairs with Thymine,and Cytosine with Guanine.Theses bases are held together by the hydrogen bonds.

Two hydrogen bonds are in A-T, and three between C-G.

The process of formation of another DNA molecules from the parent template is called replication. Under this process the parent double DNA strands unwinds,and fresh nucleotide line on the parent strands serving as the template.

Thus new double DNA stands are formed with one back bone of alternate sugar and phosphate containing the new DNA strands,while the other strands conserving the parents strands contains the old back bone of sugars alternated with phosphate.This is semi conservative replication because, one of the double stands is new and the other is from the original parent strand.

Other form of replication is called conservative replication in which an entirely new double strands is formed,different from the parent DNA.

It begins with the the unwinding of the DNA strands by the activity of enzyme Helicase which breaks down the hydrogen bonds between bases.This is followed by attachment of primer to the old strands, and the catalysis by Enzyme DNA polymerase which ensure that new nucleotide are attach in 3'-5' direction to form a new strands.

Answer from: Quest

d bonding propertys

explanation:

carbon can form so many different compounds not just with oxygen

Answer from: Quest

The return of the wolf to yellowstone national park will probably affect the bird population to some degree, not significantly. while wolves will hunt birds when necessary, they prefer to hunt larger prey. the bird population will most likely only be affected when hunting is scarce for the wolves. birds of prey will also probably not be affected as much as other birds who spend more time on the ground hunting for food as the tend to spend more time in the air or in trees since they do not need to stay on the ground for long due to the nature of the way they hunt.

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