How do you explain DNA replication?

DNA replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. Replication is an essential process because, whenever a cell divides, the two new daughter cells must contain the same genetic information, or DNA, as the parent cell.

How does DNA replication work simple?

DNA replication is the process by which DNA makes a copy of itself during cell division. The separation of the two single strands of DNA creates a ‘Y’ shape called a replication ‘fork’. The two separated strands will act as templates for making the new strands of DNA.

What stimulates DNA replication?

In both eukaryotes and prokaryotes, DNA replication occurs when specific topoisomerases, helicases and gyrases (replication initiator proteins) uncoil the double-stranded DNA, exposing the nitrogenous bases. Complementary base pairing takes place, forming a new double-stranded DNA molecule.

How does DNA replication work quizlet?

DNA replication is the process of producing two identical copies of DNA, in which each template for the synthesis of a new complementary daughter strand. The central enzyme involved is DNA polymerase, which catalyzes the joining of deoyribonucleoside 5′-triphosphates (dNTPs) to form the growing DNA chain.

How do you replicate DNA strands?

Replication occurs in three major steps: the opening of the double helix and separation of the DNA strands, the priming of the template strand, and the assembly of the new DNA segment. During separation, the two strands of the DNA double helix uncoil at a specific location called the origin.

During what phase does DNA replication occur?

S phase
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).

How does DNA replication begin quizlet?

TestNew stuff! DNA replication begins with double stranded DNA being separated. Each original strand called a parent strand is used as a template for the complementary base pairing of nucleotides to make to new molecules. Once the replication forks are stable, DNA polymerase catalyzes the elongation of new DNA.

How does DNA replication work?

DNA replication proceeds as follows: Primarily during this process, two DNA strands will open and separate. As the strands are separated, the enzymes start synthesizing the complementary sequence in each of the strands. That is, each parental strand will act as a template for the newly synthesized daughter strands.

How does the lagging strand of DNA begin replication?

The lagging strand begins replication by binding with multiple primers. Each primer is only several bases apart. DNA polymerase then adds pieces of DNA, called Okazaki fragments, to the strand between primers. This process of replication is discontinuous as the newly created fragments are disjointed.

Does the primer always bind as the starting point for replication?

The primer always binds as the starting point for replication. Primers are generated by the enzyme DNA primase . DNA polymerases (blue) attach themselves to the DNA and elongate the new strands by adding nucleotide bases. Enzymes known as DNA polymerases are responsible creating the new strand by a process called elongation.

What would happen if there were no enzymes in DNA replication?

DNA replication would not occur without enzymes that catalyze various steps in the process. Enzymes that participate in the eukaryotic DNA replication process include: DNA helicase – unwinds and separates double stranded DNA as it moves along the DNA. It forms the replication fork by breaking hydrogen bonds between nucleotide pairs in DNA.