Important: Use custom search function to get better results from our thousands of pages

Use " " for compulsory search eg:"electronics seminar" , use -" " for filter something eg: "electronics seminar" -"/tag/" (used for exclude results from tag pages)

Ask More Info Of  A Seminar Ask More Info Of A Project Post Reply  Follow us on Twitter
21-12-2012, 12:21 PM
Post: #1
Transgenic organisms PPT

Transgenic organisms

.pptx  Transgenic organisms.pptx (Size: 1.04 MB / Downloads: 39)


A transgenic organism is an organism that has been genetically engineered.
It has genes from more than one organism.
A transgenic organism contains a gene or genes which have been artificially inserted instead of the organism aquiring them through reproduction
A genetically modified organism (GMO) or genetically engineered organism (GEO) is an organism whose genetic material has been altered using genetic engineering techniques. These techniques, generally known as recombinant DNA technology, use DNA molecules from different sources, which are combined into one molecule to create a new set of genes. This DNA is then transferred into an organism, giving it modified or novel genes.Transgenic organisms, a subset of GMOs, are organisms that have inserted DNA from a different species. GMOs are the constituents of genetically modified foods.


There is no such disadvantages of genetically modified organisms proved on a scientific point of view. But they are always under ethical misjudgment. However some disadvantages can be pointed out-
Genetic modifications results in formation of Transgenic plants and animals. So there may be a chance of loss of Genetic diversity upon wide use of this process on particular species, if care is not taken to preserve genetic material of the original organisms.
Artificial Genetic modifications of a desired organism may results in simultaneous Natural Genetic (or other) modifications of a undesired organism. For example, on modifying a plant to be resistant to a particular disease causing organism, the latter may acquire natural variations which may enable it to infect other plant species not previously infected.
Some people complain that by modifying different agricultural plants to increase quantity, resistance etc. the natural taste of the food product is somehow get disrupted. However, it has no scientific basis.


Advantages: 1- Improvement of crops (improving some characteristics which are plant weaknesses. For example production of insect tolerance plants)
2- Increasing the production ( that could be either increasing the yield or one/more compounds in a plant (especially medicinal plants) for example : the sheep gives us more wool

Why are transgenics important?

 The underlying principle in the production of transgenic animals is the introduction of a foreign gene or genes into an animal (the inserted genes are called transgenes). The foreign genes “must be transmitted through the germ line, so that every cell, including germ cells, of the animal contain the same modified genetic material.”26 ( Germ cells are cells whose function is to transmit genes to an organism’s offspring.)


 To date, there are three basic methods of producing transgenic animals:
DNA microinjection
Retrovirus-mediated gene transfer
Embryonic stem cell-mediated gene transfer

 DNA Microinjection

The mouse was the first animal to undergo successful gene transfer using DNA microinjection.
This method involves:
Transfer of a desired gene construct (of a single gene or a combination of genes that are recombined and then cloned) from another member of the same species or from a different species into the pronucleus of a reproductive cell .
The manipulated cell, which first must be cultured in vitro (in a lab, not in a live animal) to develop to a specific embryonic phase, is then transferred to the recipient female

what are transgenic animals used for ?

Transgenic animals are used as experimental models to perform phenotypic tests with genes whose function is unknown or to generate animals that are susceptible to certain compounds or stresses for testing in biomedical research.[citation needed] Other applications include the production of human hormones, such as insulin.
Frequently used in genetic research are transgenic fruit flies (Drosophila melanogaster) as genetic models to study the effects of genetic changes on development.Flies are often preferred over other animals for ease of culture, and also because the fly genome is somewhat simpler than that of vertebrates. Transgenic mice are often used to study cellular and tissue-specific responses to disease.


Biomaterials are materials mainly used in the medical area, and have been applied in the dental field, surgery, and drug delivery. The first priority for biomaterials is biocompatibility with the host tissues to which they have been applied. The shortage of organs to be transplanted is a worldwide problem, and many patients die before they can get a suitable organ replacement; even after transplantation, some patients die due to mis-compatibility. A promising future for solving this problem may be found in the use of GMOs to generate biomaterials, by using transgenic animals which are able to provide large quantity of organs biocompatible to the receivers.

Traditional methods of producing protein drugs and vaccines in mass quantities are very time-consuming and expensive. GMOs, such as transgenic bacteria or yeast, can produce large quantities of those drugs and vaccines in a much more efficient way (3). Therefore, mass application of GMOs in pharmacy has allowed large quantity of originally expensive new drugs to put into the market in a shorter time span and at a much lower price. 

GMOs used in this field are mainly transgenic plants that are resistant to pests, herbicides or harsh environmental conditions, have improved shelf life, and increased nutritional value. For example, the transgenic plant producing Bt Toxin (Figure 2), an insecticide originally produced by the bacterium Bacillus thuringiensis with specific activities against many species of pest insects (4), entered the commercial market within in the last decade. Many transgenic plants, such as genetically modified soybeans and corns with higher nutritional values or better taste, have already entered many people’s daily lives.
Rating Transgenic organisms PPT Options
Share Transgenic organisms PPT To Your Friends :- Seminar Topics Bookmark
Post Reply 

Marked Categories : transgenic tecniques ppt, transgenic organisms powerpoint, genetically modified organisms ppt, ppt transgenic microbes, ppt on transgenics, transgenic powerpoint, transgenic genetically modified animals ppt, transgenic engineering with one example ppt, info gmmos com loc es, transgenic organism ppt, ppt file on transgenic organisms, transgenics production ppt, production of transgenic microbes ppt, ethics on gm organisms ppt 2012, http seminarprojects com thread transgenic organisms ppt, transgenic microbes ppt, transgenic organisms ppts, transgenic plants and animals disadvantages, transgenic organism, transgenic organisms ppt, transgenic production ppt,

Quick Reply
Type your reply to this message here.

Image Verification
Image Verification
(case insensitive)
Please enter the text within the image on the left in to the text box below. This process is used to prevent automated posts.

Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  Biology - Diversity in living organisms seminar projects maker 0 883 18-03-2014 11:44 AM
Last Post: seminar projects maker
  TRANSGENIC CROP PLANT ppt seminar flower 0 2,658 18-08-2012 10:10 AM
Last Post: seminar flower
  Potential for the environmental impact of transgenic crops project uploader 0 819 16-04-2012 03:15 PM
Last Post: project uploader
This Page May Contain What is Transgenic organisms PPT And Latest Information/News About Transgenic organisms PPT,If Not ...Use Search to get more info about Transgenic organisms PPT Or Ask Here