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What kinds of bonds are broken between N-bases when DNA unzips during replication?
During DNA replication, the bonds broken between N-bases are hydrogen bonds. These hydrogen bonds are relatively weak compared to the covalent bonds that hold the sugar-phosphate backbone together. The breaking of hydrogen bonds allows the two strands of the DNA double helix to separate, providing access for DNA polymerase to create new complementary strands.
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What must be broken for the DNA strand to separate?
Hydrogen bonds between the nitrogenous bases need to be broken for the DNA strand to separate during replication or transcription.
What separates the DNA strands during replication?
During replication, enzymes called helicases unwind and separate the DNA strands by breaking the hydrogen bonds between the base pairs. This process creates a replication fork where new complementary strands are synthesized.
What separates the DNA strands during replication?
During replication, the DNA strands are separated by an enzyme called helicase. Helicase unwinds the double helix structure of DNA, breaking the hydrogen bonds between the base pairs and allowing the strands to separate for replication to occur.
During DNA replication what two processes must occur before the two stands of a DNA molecules can separate?
Before the two strands of a DNA molecule can separate during replication, the hydrogen bonds holding them together must be broken, and the double helix structure unwound by enzymes such as helicase. This allows the DNA polymerase enzyme to move along each strand and synthesize complementary new strands.
What is the mechanism that separates DNA strands during the process of DNA replication?
During DNA replication, the enzyme helicase unwinds the double helix structure of DNA by breaking the hydrogen bonds between the base pairs, separating the two strands.
What must be broken for the DNA strand to separate?
Hydrogen bonds between the nitrogenous bases need to be broken for the DNA strand to separate during replication or transcription.
What type of bonds are broken during the unwinding stage of replication?
hydrogen in bases
What type of chemical bond is broken during the first step of replication a. ionic b. hydrogen c. covalent d. peptide?
The chemical bond broken during the first step of replication is hydrogen bond (b).
What characteristic of hydrogen bonds make them work well during DNA replication?
Hydrogen bonds are relatively weak, allowing them to be easily broken and reformed during DNA replication. This enables the base pairing between complementary nucleotides, facilitating accurate replication of the DNA molecule. Additionally, hydrogen bonds are specific in their pairing (A-T and G-C), ensuring the fidelity of DNA replication.
What separates the DNA strands during replication?
During replication, enzymes called helicases unwind and separate the DNA strands by breaking the hydrogen bonds between the base pairs. This process creates a replication fork where new complementary strands are synthesized.
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.
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.
How are hydrogen bonds separated when DNA copies itself?
During DNA replication, hydrogen bonds between base pairs are broken by an enzyme called DNA helicase. This enzyme unwinds the double helix structure of DNA, separating the two strands. This allows for new complementary nucleotides to be added during the replication process.
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 is copies during replication?
A cell's DNA is copied during replication.
What separates the DNA strands during replication?
During replication, the DNA strands are separated by an enzyme called helicase. Helicase unwinds the double helix structure of DNA, breaking the hydrogen bonds between the base pairs and allowing the strands to separate for replication to occur.
During DNA replication what two processes must occur before the two stands of a DNA molecules can separate?
Before the two strands of a DNA molecule can separate during replication, the hydrogen bonds holding them together must be broken, and the double helix structure unwound by enzymes such as helicase. This allows the DNA polymerase enzyme to move along each strand and synthesize complementary new strands.
