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Replication

Biology Repetitive DNAReplication bubble

Replication may refer to:
Science
Self-replication, an organism making a copy of itself or replicating oneself
DNA replication or DNA Synthesis, the process of copying a double-stranded DNA molecule.

 


Replication origin
A unique dNA sequence of a replicon at which dNA replication is initiated and proceeds bidirectionally or unidirectionally.

Replication fork
DNA replication unwinds a portion of the DNA helix, forming a fork like structure.
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Replication
In biology, replication is the act or ability to make a copy. (Mostly commonly meaning molecular replication).

DNA Replication
Before a cell can divide, it must duplicate all its DNA. In eukaryotes, this occurs during S phase of the cell cycle.
The Biochemical Reactions ...

DNA Replication
DNA replication is the process by which a molecule of DNA is duplicated. When a cell divides, it must first duplicate its genome so that each daughter cell winds up with a complete set of chromosomes.
Narration Transcription ...

During replication the DNA molecule unwinds, with each single strand becoming a template for synthesis of a new, complementary strand. Each daughter molecule, consisting of one old and one new DNA strand, is an exact copy of the parent molecule.

A postulated mode of DNA replication in which an intact double helix acts as a template for a new double helix; known to be incorrect.

Replication
The process of duplicating a DNA molecule.
Replication fork
The region on a replicating doublestranded DNA molecule where synthesis of new DNA is taking place.

replication Process by which DNA is duplicated prior to cell division. PICTURE ...

replication
The process of making a copy of something.
replication fork ...

replication
the production of exact copies of complex molecules during the growth of living organisms.

Replication
The process by which DNA is duplicated before cell division.
Ribonucleic acid (RNA) ...

Replication Forks
DNA synthesis occurs at numerous different locations on the same DNA molecule (hundreds in a human chromosome).
These form bubbles of replication with a replication fork at the growing edge.

Replication fork The site of DNA synthesis where the parental strands are separated and daughter strands complementary to each parent are synthesized.

The replication cycle of HIV
HIV binds to CD4 cell surface molecules, entry into the cell also requires binding to co-receptorsCXCR4 and CCR5). This step can be inhibited by fusion/entry inhibitors.

DNA replication: The use of existing DNA as a template for the synthesis of new DNA strands.
DNA sequence: The relative order of base pairs in any sample of DNA. See base sequence analysis.

Replication
DNA synthesis. The process of copying the DNA.
Protein
A large molecule composed of one or more chains of amino acids in a specific order; the order is determined by the base sequence of nucleotides in the gene coding for the protein.

replication (1) The sample size or number of animals in each particular treatment in an experiment.

replication fork - Y-shaped region of replicating DNA molecule at which the two daughter strands are formed and separated
respiratory chain - the name given to the electron-transport chain in the mitochondria ...

REPLICATION - The copying of a nucleic acid molecule into a new nucleic acid molecule of similar type (i.e., DNA --> DNA, or RNA --> RNA).

DNA replication
The process of making an identical copy of a section of duplex (double-stranded) DNA, using existing DNA as a template for the synthesis of new DNA strands. In humans and other eukaryotes, replication occurs in the cell nucleus.

The replication process of HIV is associated with a very high mutation rate because reverse transcription does not allow for correction of errors in nucleotide incorporation.

DNA replication involves a great many building blocks, enzymes and a great deal of ATP energy (remember that after the S phase of the cell cycle cells have a G phase to regenerate energy for cell division).

At the replication fork, nucleosomes, transcription factors and RNA polymerases are stripped off the DNA, the DNA double strands are unzipped and DNA methylation marks may be erased.

Origin of replication: Nucleotide sequences present in a plasmid which are necessary for that plasmid to replicate in the bacterial host. (Abbr. "ori")
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origin of replication
A specific sequence of bases in a nucleic acid molecule to which the enzymes responsible for replicating the nucleic acid bind to initiate the copying process.
osmoconformer ...

origin of replication A sequence of DNA at which replication is initiated.
over expression A DNA construct in which a gene is fused to a promoter conferring a constitutive and or high level of expression.

Origin of replication. The nucleotide sequence at which DNA synthesis is initiated.
OSHA. See Occupational Safety and Health Administration.

Mitosis replication and division of the chromosomes in a cell
(mito = a thread; -sis = the act of) ...

chromosome replication - chromosome replication takes place during S phase of the cell cycle; the two strands of a DNA double helix separate and each serves as a template for synthesis of complementary daughter strand.

The replication cycle of HIV
HIV is a member of the group of viruses known as retroviruses, which share a unique life cycle (Fig. 4).

The replication of a cell to form two daughter cells with identical sets of chromosomes. Molecular biology. The study of the biochemical and mo- lecular interactions within living cells. Molecular cloning.

Artificial chromosomeA vector constructed from host cell chromosomal elements such as origin of replication, telomeres and centromere (in eukaryotes).

It was further proposed that replication was accomplished by the separation of the two parent strands, each acting as a template to attract the complementary bases of new nucleotides to form a new half of the molecule.

For example, most living things have evolved elaborate molecular machinery that checks for and corrects errors during the process of DNA replication, keeping their mutation rate down to acceptably low levels; conversely, ...

Eukaryotic DNA polymerases participate in chromosomal replication, repair, crossing-over and mitochondrial replication. To initiate replication, DNA polymerases require a priming RNA molecule.

Plasmid: A circular DNA molecule capable of replication in bacteria. Plasmids are the usual means of propagation of DNA for transfection or other purposes.
Pleiotropy: A phenomenon whereby a particular gene affects multiple traits.

short DNA fragment found during discontinuous DNA replication
Source: Jenkins, John B. 1990. Human Genetics, 2nd Edition. New York: Harper & Row
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A short sequence (of RNA or DNA) from which DNA replication can initiate. May be either a synthetic DNA or RNA or a length of RNA synthesized in vivo by primase.

cell cycle, mitotic spindle, DNA replication, kinetochore, microtubule
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polytene chromosome - large chromosome resulting from repeated DNA replication and alignment of homologs in the absence of mitosis; found in salivary glands and some other tissues of dipteran insects.

MITOSIS - WHEN CELLS SPLIT APART
Eventually cells need to duplicate. There are two main methods of replication, mitosis and meiosis. This tutorial will talk about mitosis.

Euchromatin noun (and Euchromatic adjective) chromatin with a normal pattern of replication and gene expression. Compare with heterochromatin.

Bacterial Viruses
Plant Viruses and Viroids
Viruses and Cancer
Virus Replication ...

nucleus -- Membrane-bound organelle which contains the DNA in the form of chromosomes. It is the site of DNA replication, and the site of RNA synthesis.

In a DNA molecule adenine always pairs with thymine while cytosine always pairs with guanine. Thus, one DNA strand directs the synthesis of the other strand. This specificity of DNA base pairing is what enables accurate replication of a DNA molecule.

of another species; the vector may or may not be essential for the completion of the life cycle of the pathogenic microorganism. Also, the vehicle for cloning, typically a DNA molecule (plasmid or bacterophage DNA) capable of self-replication in a ...

See also: DNA, Cells, Cell, Organ, Trans