what is a advantage of using cell in cultivtaing virus?
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A virus needs a cell to replicate itself. You see viruses have absolutely no ability to reproduce on there own. They basically "hijack" a cell and then the cell makes a copy of the virus.
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Different viruses target different cells. This can be due to specific antigens (markers) on the cells or receptors.  Also Viruses known as retroviruses contain RNA inside them and RNA reverse trancriptase than when inserted into a cell can integrate into the cells own DNA. Thus, using the viruses as a factory to produce more viruses or other effects in the neighboring cells.
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Most times the projections are what allow the virus to bind and then enter a host cell.  They can also be used to mediated membrane fusion and cell to cell spead of the virus.
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I’m not sure if mitosis inhibiting ‘compound’ is the right approach, as it will prevent the good cells from dividing as well. On the other hand developing the viruses that attack malignant cell may be a more effective way.
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The virus would have to infect only the cancer cells, which is kind of impossible to do (right now anyway).  If the virus contained a protein sequence for a toxin that was transcribed or un-repressed by the presence or absence of a protein in the infected cell it would possibly work.  Also, there would have to be a 100% infectivity and mortality rate for infected cells because it just takes a few resistant cancer cells and you're back where you started.  Also, the host's (person with the cancer) immune system would quickly kill any secondary exposure to the virus.  Unless you wipe out their immune system of course.
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Seperating cells from Morula to use them for medical purpose is technically feasible. But at present seperating such cells is not feasible. Some more research is needed.
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A viruses is a small structure that has a protein coat with a pieces of genetic material.  It invades the cell of its host and uses the hosts DNA to replicate its own genetic material.  Once the cell has replicated the viruses DNA the cell ruptures and the viral DNA is sent throughout the hosts body.  A virus is not technically classified as a living thing.  It is not able to replicate and reproduce with out a host.\nA bacteria is classified as a living thing.  It is a prokaryotic organism with the ability to reproduce using its own genetic material  DNA/ RNA.
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Yes they do and therefore are able to propogate their own kind (also able to show variations by genetic recombination). DNA or RNA both can be used as the building blocks. \n\nThey however try to carry a small baggage when traveling and use the host cell machinary to produce stuff that they need along the way.\n\nA virus is a submicroscopic parasitic particle that infects cells in biological organisms. The study of viruses is virology.\n\nViruses are obligate intracellular parasites that lack the cellular machinery for self-reproduction. Viruses infect eukaryotes and prokaryotes such as bacteria; viruses infecting prokaryotes are also known as bacteriophages or phages. Typically viruses carry a small amount of genetic material, either in the form of DNA or RNA, but not both, surrounded by some form of protective coat consisting of proteins, lipids, glycoproteins or a combination. The viral genome codes for the proteins that constitute this protective coat, as well as for those proteins required for viral reproduction that are not provided by the host cell.\n\nViruses are non-living particles that can only replicate when an organism reproduces the viral RNA or DNA. Viruses are considered non-living by the majority of virologists because they do not meet all the criteria of the generally-accepted definition of life. Among other factors, viruses do not move, metabolize, or decay on their own. However, a comprehensive definition of life is still somewhat elusive since some bacteria (considered living) like rickettsia exhibit both characteristics of living and non-living particles.\n\nBecause viruses are acellular and do not have their own metabolism, they must utilize the machinery and metabolism of the host for the purpose of self-replication. Before a virus has entered a host cell, it is called a virion — a package of viral genetic material. Virions can be passed from host to host either through direct contact or through a vector, or carrier. Inside the organism, the virus can enter a cell in various ways. Bacteriophages—bacterial viruses—attach to the cell wall surface in specific places. Once attached, enzymes make a small hole in the cell wall, and the virus injects its DNA into the cell. Other viruses, such as HIV, enter the host via endocytosis, the process by which cells take in material from the external environment. After entering the cell, the virus's genetic material begins the destructive process of causing the cell to produce new viruses.\n\nThere are three different ways genetic information contained in a viral genome can be reproduced. The form of genetic material contained in the viral capsid, the protein coat that surrounds the nucleic acid, determines the exact replication process.\n\nSome viruses have DNA which is replicated by the host cell along with the host's own DNA.\n\nThere are two different replication processes for viruses containing RNA. In the first process, the viral RNA is directly copied using an enzyme called RNA replicase. This enzyme then uses that RNA copy as a template to make hundreds of duplicates of the original RNA. A second group of RNA-containing viruses, called the retroviruses, uses the enzyme reverse transcriptase to synthesize a complementary strand of DNA so that the virus' genetic information is contained in a molecule of DNA rather than RNA. The viral DNA can then be further replicated using the resources of the host cell.\n\nBacteriophages have two cycles called the lytic cycle and lysogenic cycle. In the lytic cycle the host cell undergoes lysis (the breaking open of the cell to release viral particles), biosynthesis, maturation and finally release. In the lysogenic cycle viral replication does not immediately occur, but replication may take place some time in the future. some viruses e.g. lambda are capable of carrying out both cycles. In the lytic cycle the cell is soon destroyed and the viruses made will have to find new host. However during the lysogenic s
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A virus can be in one of two forms: a DNA virus or an RNA virus.\n\nOnly a DNA virus can DIRECTLY incorporate its DNA into the host's genome.\n\nAn RNA virus has to perform an extra step before it can incorporate its genetic material into the host's genome.  It must convert its RNA code into a DNA sequence.  \n\nHere is a little bit more information:\n\nThis extra step makes RNA viruses more "dangerous", because mistakes often occur when converting the RNA to DNA.  This allows RNA viruses to mutate faster, and so drugs to prevent RNA viral expression often become outdated because the virus mutates so quickly during this extra step.\n\nIt was fun thinking about your question.  I hope you pass on the good Karma!
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Viral populations do not grow through cell division, because they are acellular; instead, they use the machinery and metabolism of a host cell to produce multiple copies of themselves. They may have a lytic or a lysogenic cycle, with some viruses capable of carrying out both. A virus can still cause degenerative effects within a cell without causing its death; collectively these are termed cytopathic effects. Released virions can be passed between hosts through either direct contact, often via body fluids, or through a vector. In aqueous environments, viruses float free in the water.\n\nIn the lytic cycle, characteristic of virulent phages such as the T4 phage, host cells will be induced by the virus to begin manufacturing the proteins necessary for virus reproduction. As well as proteins, the virus must also direct the replication of new genomes, the technique used for this varies greatly between virus species but depends heavily on the genome type. The final viral product is assembled spontaneously, though it may be aided by molecular chaperones. After the genome has been replicated and the new capsid assembled, the virus causes the cell to be broken open (lysed) to release the virus particles. Some viruses do not lyse the cell but instead exit the cell via the cell membrane in a process known as exocytosis, taking a small portion of the membrane with them as a viral envelope. As soon as the cell is destroyed the viruses have to find a new host.
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A model of a cell is a good choice.
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to maintain the concentration level of the cell
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To learn how to make media. To learn to culture and split cells. To know contamination when you see it. Microscopy. Cell counting; by Coulter and hemocytometer. And a whole lot more, but these will do for a start.
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Culturing animal cells and tissue is used as a replicable way to test drugs and to examine pathways.  The theory of this technique is that cells or tissues grown in culture are good models of the animal itself.  We can grow whole sheets of muscle cells, which form functional, twitching masses; neuronal cell cultures which grow processes and form functional synapses, etc.
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The answers to these questions would be specific to whatever virus you are interested in looking at. Some viruses can be cultured, some cannot. Immunofluorescence requires that you have an antibody that is specific for the virus you are trying to detect
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a.cell fusion -2 Living cells fused using synthetic medium artificially, it casues karyoplast fusion as well as cytoplast fusion, When an undifferentiated stem cell fuses with a mature differentiated cell, the resultant cell can retain the mature cell \n\nb.Tissue culture - A branch of biotechnology working using invtro cell lines in a petridish growing in 37 degree incubator with 5% Carbon dioxide.. example Hela cell lines - A cell line obtained from Henrita laks ( other exapmles like  tissues cut from kidney or other tissues and homogeneous suspension is  made  and grown in dishes to study drug targetting and for transfection.Also in plants small part of bud is cultured in a test tube with appropriate shoot inducing and rooinducing hormones to get plants with desired charecters .A biotechnology teaching college is incomplete without a tissue culture lab aslo known as cell culture lab\n\nc.Recombinent DNA - Most of the times bacterial plasmids are engineered to ligate with gene of interest using enzymes to obtain required protein ,usually used for commercial purpose and also for research purpose ( recombining DNA -a major feild also called as genetic engineering )\n\nd.Embryo transfer - 2 kinds of embryo transfers are commenly seen .One in the laboratory,it is done using mouse embryos, after embryo manipulations , to obtain transgenic animals or knock out animals or for other purposes embryos are transfered to a surrogate mother ,It is done in two ways. uterine or oviduct (depending on the stage of the embryo) , 2nd one ,in hosipitals  invitro clininc IVF therapy ,Embryos are transferred using a cappilary pipe and a syringe,through the vegina ( generally in blastocyst stage)to the mother after invitro fertilisation for those mothes who has problem in natural fertilsation and also for various other reasons ,to get disigned babies .Embryo transfers are also practicved in other animals as well .Dolly is also a gud example born after embryo transfer after somatic cell nuclear transfer \n\ne.Artificial insemination - Here sperm is placed into a female's uterus by artificial means unlike natural copulation.Semen is collected, extended, then cooled or frozen. It can be used on site or shipped to the female's location.artificial insemination were first developed for the dairy cattle industry to allow many cows to be impregnated with the sperm of a bull with traits for improved milk production.and also in other animals .In humans artificial insemination is usually part of an infertility treatment; either the woman's partner's sperm (artificial insemination by husband, AIH) or donor sperm (artificial insemination by donor, AID) can be used.\n\nf.protoplast fusion - a technique used to generate genetically modified fruits,Protoplast is nothing but cell minus cell wall , so two protoplasts are fused from two fruits after removing cell wall using generally PEG and sendiviruses to enhance fusion .Generally it causes somatic cell fusion.Protoplasts are useful in genetic manipulations because they do not have cell walls. They are ideal targets for taking up naked DNA and for fusing with protoplasts of other related species. In the related genus, Episcia, some species and selections have true yellow and red flowers. this procedure has been successfully applied  for plant regeneration from African violet protoplasts to protoplasts of Episcia cupreata Tropical Topaz .Several researchers have emphasized production of hybrids between distantly related, sexually incompatible species, not all are success stories there are more failure also .\n\ng. test tube baby - A test-tube baby is the term that refers to a \nchild that is conceived outside the woman's body.  The first \nsuccessful test-tube baby was born in England in 1978 and since then.over 20,000 test-tube babies have been born worldwide. The process is referred to as in vitro (outside the body) fertilization.Simply put, eggs are removed from the mother's ovary and inc
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Some DNA viruses already have the ability to insert their-own DNA into the DNA of the cell infected and use the cells "machinery" to multiply. By inserting into the DNA of the virus a "patch" (a DNA segment coding for the missing protein that caused the original disease) can be also inserted. It is hoped that enough of the infected cells can utilize this "patch" to correct the absence of the protein, tissue and organ-wide..