Table of Contents
Where does DNA replication occur in the cell cycle?
S phase
Replication of the DNA occurs during the S phase of interphase. Interphase is essentially the first and longest phase of the cell cycle characterized by three distinct phases: growth phase 1 (G1), synthesis (S) phase, and srowth phase 2 (G2).
Where does DNA replication take place and why?
DNA replication is the process of creating two identical daughter strands of DNA. DNA replication occurs in the nucleus in eukaryotic cells and in the nucleoid region in prokaryotic cells. DNA replication occurs in S phase during the cell cycle prior to cell division.
Where does the replication of DNA occur inside the cell and what part of the cell cycle?
In the eukaryotic cell cycle, chromosome duplication occurs during “S phase” (the phase of DNA synthesis) and chromosome segregation occurs during “M phase” (the mitosis phase).
Which process occurs during DNA replication?
What happens during DNA replication? During DNA replication, the DNA molecule separates into two strands, and then produces two new complementary strands following the rules of base pairing. Each strand of double helix of DNA severs as a template, or model, for the new strand.
Where does DNA replication take place quizlet?
DNA replication occurs inside the cell’s nucleus. Each DNA strand in a humans “double helix” structure DNA is anti-parallel to the other.
Where does replication occur in prokaryotes?
cytoplasm
Prokaryotic DNA replication takes place in the cell’s cytoplasm. The replication takes place in the cell’s nucleus. There is a single point of origin per DNA molecule. There are multiple points of origin on a single DNA molecule.
In which phase does DNA replication occur?
S phase is the period during which DNA replication occurs.
Which of the following occurs during DNA replication quizlet?
Which of the following occurs during DNA replication? DNA polymerase elongates the daughter strand, adding new nucleotides to the 3′ end of the molecule.
What occurs during DNA replication quizlet?
What happens during replication? During replication, the DNA molecule separates into two strands and then produces two new complementary strands following the rules of base pairing. Each strand of the double helix of DNA serves as a template, or model, for the new strand.
What is DNA replication where does DNA replication take place in a eukaryotic cell?
the nucleus
Comparisons between prokaryotic and eukaryotic DNA replication
| Prokaryotic DNA Replication | Eukaryotic DNA replication |
|---|---|
| Occurs inside the cytoplasm | Occurs inside the nucleus |
| Only one origin of replication per molecule of DNA | Have many origins of replication in each chromosome |
Which model of DNA replication is correct?
After Watson and Crick proposed the double helix model of DNA, three models for DNA replication were proposed: conservative, semiconservative, and dispersive. The semiconservative model was proved to be the correct one.
Why does DNA replication need to occur?
DNA replication needs to occur because existing cells divide to produce new cells. Each cell needs a full instruction manual to operate properly. So the DNA needs to be copied before cell division so that each new cell receives a full set of instructions!
What is the Order of DNA replication?
There are three main steps to DNA replication: initiation, elongation, and termination. In order to fit within a cell’s nucleus, DNA is packed into tightly coiled structures called chromatin, which loosens prior to replication, allowing the cell replication machinery to access the DNA strands.
What direction does DNA replication go?
DNA replication goes in the 5′ to 3′ direction because DNA polymerase acts on the 3′-OH of the existing strand for adding free nucleotides.