What is true about replication of DNA?
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.
Which is true about DNA replication? It is semiconservative. It starts at an origin of replication.
Definition. DNA replication is the process by which the genome's DNA is copied in cells. Before a cell divides, it must first copy (or replicate) its entire genome so that each resulting daughter cell ends up with its own complete genome.
Which of the following is true about DNA polymerase? Explanation: DNA pol can synthesize only a new DNA strand not m-RNA. It can do this in the 5' to 3' direction.
- DNA primase lays down an RNA primer.
- DNA polymarase 3 puts together DNA nucletoids to make a long strand.
- DNA polymarase 1removes RNA and replaces with DNA.
- ligase links them together.
The statement pertaining to DNA replication that is false is D: Okazaki fragments are synthesized as part of the leading strand.
Answer and Explanation: Of the following the only that is true about DNA is that it is located in the nucleus of our cells. DNA is made up of nitrogenous bases, phosphates...
the process in which one DNA molecule produces two identical DNA molecules, occurs before the cell divides.
Which of the following statements correctly explains what it means for DNA replication to be bidirectional? The replication forks formed at the origin move in opposite directions.
The sole purpose of DNA replication is to generate identical DNA molecules, as they are the blueprint that makes life possible. There are reasons that there DNA replication goes through a slightly different process to repair damage.
What is DNA replication summary?
DNA Replication Summary
DNA replication is the production of identical DNA helices from a single double-stranded DNA molecule. Each molecule consists of a strand from the original molecule and a newly formed strand. Prior to replication, the DNA uncoils and strands separate.
There are four basic components required to initiate and propagate DNA synthesis. They are: substrates, template, primer and enzymes.
- DNA double helix.
- Hydrogen bonds break and helix opens.
- Each strand of DNA acts as a template for synthesis of a new, complementary strand.
- Replication produces two identical DNA double helices, each with one new and one old strand.
Correct answer:
Explanation: DNA replication is the process of copying the parent DNA helix into two identical daughter helices. The process is semi-conservative, which means that one parent strand is passed down to each daughter strand.
DNA replication steps. 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.
Which of the following best describes this characteristic of replication? each new DNA molecule is made of pieces of the parent strand and alternating with segments that have been newly constructed from the free nucleotides.
DNA has a double-helical structure with two nucleotide chains that run anti-parallel, the outer edges are formed by alternating deoxyribose sugar molecules and phosphate groups, which make up the sugar-phosphate backbone. Hence statement 3 is correct.
The cellular process of creating two new DNA molecules from one original copy is called replication. Which statement is the BEST description of this process? DNA opens up and each strand is used as a template for a new strand.
Which of the following statements about DNA structure is true? The nucleic acid strands in a DNA molecule are oriented antiparallel to each other, meaning they run in opposite directions. This statement is true; the 5′, 3′ orientation of each chain runs in opposite directions.
The correct option: The structure which is not true for a DNA molecule is B. Single-stranded.
Which of the following would be true of any given DNA molecule?
Which of the following would be true of any given DNA molecule? Its bases would consist of adenine, cytosine, guanine, and uracil. It would contain an equal number of purines and pyrimidines.
A linking enzyme essential for DNA replication; catalyzes the covalent bonding of the 3' end of a new DNA fragment to the 5' end of a growing chain. Small fragments of DNA produced on the lagging strand during DNA replication, joined later by DNA ligase to form a complete strand.
DNA replication occurs inside the cell's nucleus. Each DNA strand in a humans "double helix" structure DNA is anti-parallel to the other.
The final product of DNA replication is: two DNA molecules, each of which contains one new and one old DNA strand. The information carried by DNA is incorporated in a code specified by the: specific nucleotide sequence of the DNA molecule.
5. Which of the following does not affect DNA replication? Explanation: The antiparallel nature of DNA and end specificity of polymerase of polymerase leads to two types of strand synthesis, leading and lagging strands. Helicase helps in the unwinding of the DNA helix.
Which of the following proteins is not necessary during DNA replication? Explanation: RNA polymerase is an enzyme that transcribes RNA from DNA; it is not essential for DNA replication.
Which of the following statements about the strands of a newly replicated DNA molecule is correct? One strand is new and the other is from the original molecule. Which of the following is not needed for DNA replication?
DNA replication occurs in the interphase nuclei of eukaryotic cells. DNA replication occurs before mitosis at the S-stage (synthesis) of the cell cycle.
- Enzyme seperate DNA sides.
- New bases pair with bases on original DNA.
- Two new identical DNA molecules are produced.
Cells must replicate their DNA before they can divide. This ensures that each daughter cell gets a copy of the genome, and therefore, successful inheritance of genetic traits. DNA replication is an essential process and the basic mechanism is conserved in all organisms.
What is DNA replication example?
As a consequence, it is telomeres that are shortened with each round of DNA replication instead of genes. For example, in humans, a six base-pair sequence, TTAGGG, is repeated 100 to 1000 times. The discovery of the enzyme telomerase (Figure 9.2. 4) helped in the understanding of how chromosome ends are maintained.
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Also see:
- How Many Stages Are There in DNA Replication?
- Is DNA Replication Natural?
- What Triggers DNA Replication?
False- The two strands do not need to separate for replication to occur. This is accomplished by the binding of inhibitor proteins at the origin of replication.
The first step in DNA replication is the unzipping of DNA double strands and the formation of the replication fork. DNA helicase unwinds the DNA double helix so that the two strands can be used as the template for the formation of new strands.
Once the DNA is replicated, we get two new DNA molecules each with one old and one newly formed strand. Cell can now undergo division and each daughter cell gets the same copy of DNA as the parent cell.
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.
- 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.
A process in which DNA has the unique ability to make an exact copy of itself.
Cells must replicate their DNA before they can divide. This ensures that each daughter cell gets a copy of the genome, and therefore, successful inheritance of genetic traits. DNA replication is an essential process and the basic mechanism is conserved in all organisms.
DNA replication definition. the process in which one DNA molecule produces two identical DNA molecules, occurs before the cell divides.
What is the purpose of DNA replication quizlet?
The sole purpose of DNA replication is to generate identical DNA molecules, as they are the blueprint that makes life possible. There are reasons that there DNA replication goes through a slightly different process to repair damage.
DNA replication occurs in the interphase nuclei of eukaryotic cells. DNA replication occurs before mitosis at the S-stage (synthesis) of the cell cycle.