What is the process of DNA replication 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 primers are synthesized by a set of proteins called a primosome, of which a central component is an enzyme primase, a type of RNA polymerase.

What is the process of DNA replication?

DNA replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. Once the DNA in a cell is replicated, the cell can divide into two cells, each of which has an identical copy of the original DNA.

What does DNA replication require quizlet?

What is required to replicate DNA? DNA polymerase separates the two DNA strands. B. DNA molecules containing nucleotides from the original molecule are produced.

What are the 4 steps of 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.

What’s the first step in DNA replication?

The first step in DNA replication is to ‘unzip’ the double helix structure of the DNA? molecule. This is carried out by an enzyme? called helicase which breaks the hydrogen bonds? holding the complementary? bases? of DNA together (A with T, C with G).

What is the first step of DNA replication quizlet?

The first major step for the DNA Replication to take place is the breaking of hydrogen bonds between bases of the two antiparallel strands. The unwounding of the two strands is the starting point. The splitting happens in places of the chains which are rich in A-T.

What is DNA replication example?

When a cell divides, it is important that each daughter cell receives an identical copy of the DNA. This is accomplished by the process of DNA replication. For example, a strand of DNA with a nucleotide sequence of AGTCATGA will have a complementary strand with the sequence TCAGTACT (Figure 9.2. 1).

What role does the enzyme Primase play in DNA replication quizlet?

The enzyme called RNA primase makes a short strand of RNA primer that is complementary to the template DNA strand. The RNA primer is made of a few to 10 RNA nucleotides. This RNA primer is necessary for DNA polymerase (enzyme) to start adding DNA nucleotides to make short segments of the lagging strand.

What is the first step in DNA replication?

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.

What are the 7 steps of DNA replication?

The series of events that occur during prokaryotic DNA replication have been explained below.

• Initiation.
• Primer Synthesis.
• Leading Strand Synthesis.
• Lagging Strand Synthesis.
• Primer Removal.
• Ligation.
• Termination.

What are the problems of DNA replication?

Errors during Replication. DNA replication is a highly accurate process, but mistakes can occasionally occur as when a DNA polymerase inserts a wrong base. Uncorrected mistakes may sometimes lead to serious consequences, such as cancer .

What happens after DNA replication?

The result of DNA replication is two DNA molecules consisting of one new and one old chain of nucleotides. This is why DNA replication is described as semi-conservative, half of the chain is part of the original DNA molecule, half is brand new. Following replication the new DNA automatically winds up into a double helix.

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 does DNA replication produce?

In molecular biology, DNA replication is the biological process of producing two identical replicas of DNA from one original DNA molecule. DNA replication occurs in all living organisms acting as the basis for biological inheritance. The cell possesses the distinctive property of division, which makes replication of DNA essential.