what is replication?

Question

give the enzymatic as well as mechanism prospective.

Answer 1

replication

In database management, the ability to keep distributed databases synchronized by routinely copying the entire database or subsets of the database to other servers in the network.

There are various replication methods. Primary site replication maintains the master copy of the data in one site and sends read-only copies to the other sites. In a workflow environment, the master copy can move from one site to another. This is called "shared replication" or "transferred ownership replication." In symmetric replication, also called "update-anywhere" or "peer-to-peer replication," each site can receive updates, and all other sites are then updated. Failover replication, or hot backup, maintains an up-to-date copy of the data at a different site for backup.

Answer 2

Replication is the process where DNA double helix replicates giving two new doble helixes when cell divides.

DNA replicates during the S phase of the cell cycle.

DNA replication is proven to be semiconservative(through experiments), some others have proposed some theories claiming that it might be conservative or dispersive.

DNA replication begins when an initiator protein( replicase) binds to the replication orgin in the DNA helix.

Then, helicase is loaded in the helix, helicase helps open up the helix so that it can be replicated.

Then,primase binds to helicase, primase is the protein that synthsizes the primer necessary for replication by leaving the 3' OH end available for polymerase.

polymerase brings deoxyribonucleoisde triphospate and binds it to the 3' OH end.

Polymearse by this binds to the primer forming okazali fragment.

some special sliding clamps help keep the polymerase tight on the helix.

Topoisomerase helps relieve the tangling problims in the helix.

The mother helix should rotate ahead from the polymerase to help in replication ( in bacteria it rotates 50 times per second).

New strands are replicated from 5' to 3'

Primer is elongated by polymearse and then removed by special enzyme.

ligase helps ligating the phosphodiester bond.

In mamalians there are two ploymerases while bacteria have only one.

Primase of mammalian DNA is a subunit of the lagging strand's polymerase, while in bacteria, it is associated with helicase

Answer 3

The basic idea of replication has a long history in biology, beginning with the traditional distinction between homocatalysis and heterocatalysis and then later between transcription and translation. The basic distinction that these pairs of terms were designed to indicate is between like producing like (homocatalysis and transcription) and like producing unlike (heterocatalysis and translation). The paradigm example of this distinction is the contrast between genes and organisms. Genes perform two functions. They make other genes and, by means of the developmental process, they help produce organisms and their phenotypic traits (for a recent discussion of these two processes at the molecular level, see Rebek 1994 and Cook 1999).

As pervasive as this terminology has been, it engendered very little controversy until Richard Dawkins introduced the distinction between replicators and vehicles in his The Selfish Gene (1976). For his purposes Dawkins found the contrast between genes and organisms too restrictive. Everyone agrees that genes are replicators, but genes may not be the only replicators. Perhaps more inclusive entities than single genes might also function as replicators. At the very least, this possibility should not be defined out of existence. Hence, Dawkins adopted “replicator” as a more inclusive term than “gene.” He also introduced the term “vehicle” for those entities produced by replicators that help these replicators increase in numbers by interacting effectively with their environments. This distinction can be expressed in terms of either entities or processes. According to Dawkins replicators function in replication, while vehicles function in environmental interaction

Answer 4

A fold backwards (genetics) the process whereby DNA makes a copy of itself before cell division. The synthesis of an exact copy of a structure from a template of the same structure.

I would suggest you do a Search using Yahoo, Google or Ask Jeeves.
Also if you are taking a Biology class you may find your answer in one of your books.

Answer 5

Replication- Is doubling of the cell before the cell Divides so that the new cell will have the same composition at the Mother cell e.g DNA replication