amy045
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DNA is a molecule that needs to be copied very regularly.
What are the advantages of having hydrogen bonds in the centre?
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Anonymous1502
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(Original post by amy045)
DNA is a molecule that needs to be copied very regularly.
What are the advantages of having hydrogen bonds in the centre?
Just a guess but maybe so they can be broken so DNA can be replicated as DNA can be unzipped.
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G-Sci
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(Original post by amy045)
DNA is a molecule that needs to be copied very regularly.
What are the advantages of having hydrogen bonds in the centre?
They’re easier to break to allow DNA to unzip/unwind for replication.
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bobby147
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(Original post by amy045)
DNA is a molecule that needs to be copied very regularly.
What are the advantages of having hydrogen bonds in the centre?
Hydrogen bonding helps make the DNA molecule stable by keeping it together.

The whole reason Adenine binds to Thymine and Cytosine binds to Guanine is because this maximises the number of hydrogen bonds you can form.Hydrogen bonding thus allows the formation of specific base pairs.You would not get that with the other kinds of bonding.

Also,Hydrogen bonds are weak but because DNA is a long molecule,you have lots of hydrogen bonds,the sum of which helps keep the DNA molecule together.

Hydrogen bonds being weak is important since they can still be broken easily when you need to replicate DNA.If you had strong covalent bonds instead,unwinding the dna double helix would be energetically costly.
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