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helicase enzymes
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Which molecule is active during the last step during DNA replication?
DNA ligase. Apex
What is the first event to occur during DNA replication?
DNA replication occurs during mitosis and meiosis. During this process, the DNA is lined up before being duplicated so that each cell that's created from the process has the DNA needed.
What happens first at each origin replication?
Enzymes unwind DNA!
Which is the first step to occur during the process of replication?
The first step in the process of replication is the unwinding of the DNA double helix by an enzyme called helicase. This process separates the two strands of DNA, creating a replication fork where new nucleotides can be added to each strand.
Is DNA replicated during G1?
Yes. Cell division refers to mitosis or meiosis.DNA replication occurs before every division for mitosis.In meiosis there are 2 separate cell divisions, and the DNA only replicates before the first one.
Which molecule is active during the last step during DNA replication?
DNA ligase. Apex
What is the first event to occur during DNA replication?
DNA replication occurs during mitosis and meiosis. During this process, the DNA is lined up before being duplicated so that each cell that's created from the process has the DNA needed.
What is duplicated during the process of mitosis?
DNA duplication occurs during the interphase, specifically the S phase. After replication, the cell then enters the first active phase of mitosis.
What is the first step to occur during the process of replication?
The first step in the process of DNA replication is the unwinding of the double helix structure of the DNA molecule. This is accomplished by the enzyme helicase, which breaks the hydrogen bonds between the complementary base pairs, separating the two strands. This creates a replication fork, allowing the DNA polymerase to access the single-stranded DNA templates for the synthesis of new complementary strands.
What happens first at each origin replication?
Enzymes unwind DNA!
The stage at which a dna molecule is split down the middle?
The stage at which a DNA molecule is split down the middle is replication. The first step in making a protein is RNA copying DNA.
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?
The chemical bond broken during the first step of replication is hydrogen bond (b).
What is the energy molecule that can rapidly convert to ATP in active skeletal muscle during the first 15 seconds of activity?
The energy molecule that can rapidly convert to ATP in active skeletal muscle during the first 15 seconds of activity is phosphocreatine (PCr). Phosphocreatine donates a phosphate group to adenosine diphosphate (ADP) to regenerate ATP through the action of the enzyme creatine kinase. This process allows for a quick supply of energy, enabling sustained muscle contraction during short bursts of intense activity.
Which step happens first in DNA replications?
The first thing that happens is a replication structure binds to the DNA molecule. This is usually a signalling molecule or some type of protein. Next, this replication structure attracts DNA helicase enzymes which "unzip" the double stranded helix.
When active directory detects a replication conflict in which two objects have been modified nearly simultaneously the first attribute that active directory will use as a tie-breaker is the?
Version ID. pg. 62- 70-640.
Which is the first step to occur during the process of replication?
The first step in the process of replication is the unwinding of the DNA double helix by an enzyme called helicase. This process separates the two strands of DNA, creating a replication fork where new nucleotides can be added to each strand.
