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What characteristic of hydrogen bonds make them work well during DNA replication?
Wiki User
∙ 11y ago
because they are tuff
Wiki User
∙ 11y ago
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What type of molecules are bonded together by hydrogen bonds in DNA?
Nitrogenous bases are held together by hydrogen bonds, thus making them easier to separate during DNA replication.
What does the term unzipping refer to in DNA replication?
Breaking Hydrogen Bonds.
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.
DNA replication results in two identical DNA molecules. What role do DNA helicases have in DNA replication?
DNA helicases break the hydrogen bonds in the DNA molecule
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 type of bonds are broken during the unwinding stage of replication?
hydrogen in bases
How do the nitrogen bases pair up during replication?
By forming matching hydrogen bonds.
What type of molecules are bonded together by hydrogen bonds in DNA?
Nitrogenous bases are held together by hydrogen bonds, thus making them easier to separate during DNA 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.
What kinds of bonds are broken between N-bases when DNA unzips during replication?
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.
What bond have to be broken in order for DNA replication to occur?
hydrogen bonds
What does the term unzipping refer to in DNA replication?
Breaking Hydrogen Bonds.
It is necessary for DNA strands to be held together with relatively weak hydrogen bonds?
so that the DNA strands can separate easily during replication.
How do nitrogen bases bond with each other?
hydrogen bonds
What characteristic is responsible for many of waters properties?
Hydrogen Bonds
What do DNA polymerase do in DNA replication?
It breaks the hydrogen bonds between the base pairs
When do hydrogen bonds between the nitrogen bases break?
In preparation for DNA replication or transcription.
