What is correct about DNA replication?

Replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. … Each time a cell divides, the two resulting daughter cells must contain exactly the same genetic information, or DNA, as the parent cell.

Which statement best describes the purpose of DNA replication?

The purpose of DNA replication is to produce two identical copies of a DNA molecule. This is essential for cell division during growth or repair of damaged tissues. DNA replication ensures that each new cell receives its own copy of the DNA.

What statement is false about DNA replication?

The statement pertaining to DNA replication that is false is D: Okazaki fragments are synthesized as part of the leading strand. DNA replication…

What are the 3 rules of DNA replication?

The rules are: 1. Replication is a Semi-conservative Process 2. Replication has Direction 3. Replication Starts off a Unique Point on Bacterial and Viral Chromosomes 4.

Which statement best describes Strand characteristics as it relates to DNA replication Which statement best describes Strand characteristics as it relates to DNA replication?

What best describes strand characteristics as it relates to DNA replication? The leading strand is built continuously and the lagging strand is built in pieces. During DNA replication, which nucleotide will bind to an A nucleotide in the original or parental DNA strand?

Which characteristics best describe DNA replication?

Replication of DNA is a semiconservative process. Which of the following best describes the characteristic of replication? Each new DNA molecule is made of pieces of the parent strand alternating with segments that have been newly constructed from free nucleotides.

Why is DNA replication necessary?

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 the structure of DNA result in accurate replication?

DNA replication occurs through the help of several enzymes. These enzymes “unzip” DNA molecules by breaking the hydrogen bonds that hold the two strands together. Each strand then serves as a template for a new complementary strand to be created. Complementary bases attach to one another (A-T and C-G).

Where does DNA replication happen?

nucleus
DNA replication occurs in the cytoplasm of prokaryotes and in the nucleus of eukaryotes. Regardless of where DNA replication occurs, the basic process is the same. The structure of DNA lends itself easily to DNA replication. Each side of the double helix runs in opposite (anti-parallel) directions.

What would happen without DNA replication?

Without the copying of the DNA life would not continue as existing organisms would not be able to reproduce and replace themselves. Life is dependent on the information stored on the DNA. Without replication of the DNA the information would not be passed on and life would cease to exist.

Why is it more important for DNA to be replicated accurately than transcribed accurately?

Why is it more important for DNA to be replicated accurately then transcribed accurately? DNA represents the permanent copy of genetic information, whereas RNA is transient. … If replication were a conservative process, the original DNA would have two heavy strand and all newly formed DNA would have light strands.

What is needed for DNA replication?

There are four basic components required to initiate and propagate DNA synthesis. They are: substrates, template, primer and enzymes.

How is DNA replication used in biotechnology?

Replication thus helps DNA, in the transfer of genetic information generation after generation to daughter cells or organisms. In “replication” each strand of the original double-stranded DNA molecule serves as template for the reproduction of the complementary strand. …

Why is it that DNA has to be replicated extremely accurately with very few errors?

DNA replication is extraordinarily accurate.

If a newly added nucleotide is not complementary to the one on the template strand, these enzymes remove the nucleotide and replace it with the correct one. With this system, a cell’s DNA is copied with less than one mistake in a billion nucleotides.

How accurate is DNA replication quizlet?

Is DNA replication accurate? Yes, the DNA polymerase laying down new nucleotides makes one error per 1,000,000 nucleotides. There are 3,000,000,000 base pairs in each human cell, therefore 3000 possible errors each time our cells replicate, but afterwards the other enzymes proofread and correct the new strand.

What is the correct order for the adjacent steps in DNA replication?

  • Step 1: Replication Fork Formation. Before DNA can be replicated, the double stranded molecule must be “unzipped” into two single strands. …
  • Step 2: Primer Binding. The leading strand is the simplest to replicate. …
  • Step 3: Elongation. …
  • Step 4: Termination.

How can DNA replication be studied in vitro?

Researchers commonly replicate DNA in vitro using the polymerase chain reaction (PCR). PCR uses a pair of primers to span a target region in template DNA, and then polymerizes partner strands in each direction from these primers using a thermostable DNA polymerase.

Which one is a true statement regarding DNA polymerase used in PCR?

Taq polymerase
In PCR, Taq polymerase is used which is obtained from Thermus aquaticus bacteria. It is a relatively thermostable enzyme thus used in PCR as during the process the step involving denaturation of DNA strands requires high temperature.