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Hydrogen bonds (H-bonds) are broken between the nitrogenous bases when the two strands of DNA separate.

These bonds are not as strong as the covalent bonds holding together the sugar and phosphate in the backbone, so the H-bonds break first.

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10y ago
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9y ago

The hydrogen bonds are broken in order to unzip the DNA strand. This all occurs during the DNA replication process.

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14y ago

Helicase unzips the double stranded DNA so that it can be replicated.

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13y ago

Helicase an enzyme that causes the DNA strands to unzip and unwind by breaking the weak hydrogen bonds between the complementary bases

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11y ago

The hydrogen bonds between the complimentary nitrogen bases.

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12y ago

Hydrogen Bonds

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12y ago

hydrogen in bases

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11y ago

pi bond

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Anonymous

Lvl 1
3y ago
its hydrogen bond actually

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Q: What kinds of bonds are broken between N-bases when DNA unzips during replication?
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Related questions

What type of bonds are broken during the unwinding stage of replication?

hydrogen in bases


During replication what is the function of the enzyme DNA polymerase?

DNA polymerase are enzymes that form bonds between nucleotides during replication.


What is the DIFFERENCE between replication and repetition?

The difference between between replication and replication is that replication is the series of copies, and repetition is the series of repeats.


Which enzyme assembles the complemetary nucleotide base during replication?

It's the DNA polymerase that catalyzes the formation of phosphodiester bonds between the nucleotides during replication.


What bonds are broken in order the unzip the DNA strands?

The hydrogen bonds are broken in order to unzip the DNA strand. This all occurs during the DNA replication process.


During DNA replication what two processes must occur before the two stands of a DNA molecules can separate?

the hydrogen bonds between the nitrogen bases must be broken and the molecule must unwind.


What is copies during replication?

A cell's DNA is copied during replication.


DNA is copied during a process called?

Replication.


What separates the DNA strands during replication?

That would be called the Replication Fork


Chromosomes replicate during this phase between divisions?

Chromosomes are replicated during DNA replication, which occurs during interphase.


What type of chemical bond is broken during the first step of replication?

Helicases must break the hydrogen bonds between paired nucleotide bases (Thymidine-Adenosine or Guanosine-Cytosine) of DNA strands so the two strands can be separated and replicated. The origins of replication, the initial "replication bubbles", tend to be in sequences that are A-T rich because Adenine-Thymidine has only two hydrogen bonds, energetically easier for helicases to start breaking than the three hydrogen bonds between Guanosine-Cytosine. For replication to continue topoisomerases must also cut the phosphate backbones of DNA strands, otherwise the helically wrapped strands would get much too overwound or "supercoiled" for polymerases and related replication machinery to continue to function. Nucleosomes (complexes of histone proteins that DNA wraps around) also have to be rearranged or removed to allow for replication.


What type of chemical bond is broken during the first step of replication a. ionic b. hydrogen c. covalent d. peptide?

hydrogen