GENETIC
ENGINEERING
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WHAT
IS GENETIC ENGINEERING?
1 Genetic
engineering
is
a new technology field. Today's technology is used primarily in everyday life.
For example agriculture, medicine, nutrition, education and giving a lucrative
income to business people.
2 Biotechnology
is well known for the technique that uses the
living organisms or materials of this organism to create or alter the product
for practical purposes. Biotechnology can be used for all classes of organisms
- from viruses and bacteria to plants and animals - and it has become a major
feature of modern medicine, agriculture and industry today. Today, modern
agriculture biotechnology includes the tools used by scientists to understand
and manipulate genetic organisms for use in the production or processing of
agricultural products.
3 Actually,
biotechnology technology has been applied for a long time. For example, for
brewing and fermentation. Only in the past we did not recognize it as a
biotechnology technology. In addition, micro-organisms have been used for
decades as living plants to produce life-saving antibiotics including penicillin, from fungal Penicillium, and streptomycin from bacterial Streptomyces.
This is another example of a newer app but it is robust. Modern detergents rely
on enzymes produced through biotechnology, the production of hard cheese mainly
depends on the rennet produced by biotechnology yeast and human insulin for
diabetics now produced using biotechnology.
4 Why
Biotechnology Fields are Important
Biotechnology
is used to address problems in all fields of agricultural production and
processing. This includes plant breeding to raise and stabilize yield; to
enhance endurance against pests, diseases and abiotic pressures such as drought
and cold; and to improve food nutrition. Biotechnology is used to develop
low-cost planting materials for crops such as cassava, lime, coconut, banana
and pineapple and create new tools for the diagnosis and treatment of plant and
animal diseases as well as the measurement and conservation of genetic
resources.
Biotechnology
is used to accelerate breeding programs for plants, livestock and fish and to
extend various features that can be addressed. Food and feed practices are
being changed by biotechnology to improve animal nutrition and reduce environmental
waste.
Biotechnology
is used in disease diagnosis and to produce vaccines against animal diseases.
In addition, this field is particularly beneficial to agriculture, especially
reducing costs, the number of employees and the use of chemicals in agriculture
can be reduced. The best result is that it maintains green environment
practices.
Obviously,
Biotechnology
is more than genetic engineering. In fact, some of the most controversial
aspects of potential biotechnology are the most potent and most useful in
helping the lower income group. For example, genomics revolutionize our
understanding of how genes, cells, organisms and ecosystem functions and open
new spaces for farming and assisted genetic resources management. At the same
time, genetic engineering is a very powerful tool whose roles are carefully
assessed. It is important to understand how biotechnology - especially genetic
engineering - complement and extend other approaches if appropriate decisions
are made regarding its use.
This
writing provides a brief overview of the use and use of current biotechnology
in plants, livestock, fisheries and forestry with a view to understanding the
technology itself and how they complement and extend the approach of this field
to other areas. It should be emphasized that biotechnology tools are just like:
tools, not ending themselves. As with any tool, they must be evaluated in the
context in which they are used.
5 Biotechnology
definitions are:
"Any
application of technology using biological systems, living organisms, or
derivatives thereof, to create or modify products for special use"
(Secretariat of the Convention on Biodiversity, 1992). This definition includes
medical and industrial applications as well as many common tools and techniques
used in agriculture and food production.
The
Cartagena Protocol on Biosafety defines "modern biotechnology" with
narrower use of:
In
vitro nucleic acid techniques, including recombinant deoxyribonucleic acid
(DNA) and direct injection of nucleic acid into cells or organelles, or
Fusion
cells outside the taxonomic family, which cope with reproductive barriers or
natural physiological recombination rather than techniques used in traditional
breeding and selection.
-
Secretariat
of the Convention on Biodiversity, 2000
"Biotechnology
is broadly like the CBD and narrowly as" various different molecular
technologies such as gene manipulation and genetic transfers, DNA cloning and
cloning of plants and animals "(FAO, 2001a).
-
Glossary of FAO Biotechnology
6 DNA
recombinant technique
also
known as genetic engineering or genetic genetic modification (more familiar but
incorrect), refers to the genetic modification of the organism by means of
transgenesis, in which the DNA of an organism or transgene is transferred to
another without sexual reproduction. Genetically modified organisms (GMOs) are
modified by the application of transgenesis or recombinant DNA technology,
where transgene is inserted into the host genome or the genes within the host
modified to alter the stage of expression. The terms "GMO",
"transgenic organisms" and "genetic engineering organisms
(GEOs)" are often used interchangeably even though they are not
technically the same. For the purposes of this report, they are used as
synonyms.
7Understand, Characterizing & Managing Genetic Resources
Farmers and pastoralists have
manipulated the genetic make-up of plants and animals since agriculture began
more than 10 000 years ago.
Farmers managed the process of
domestication over millennia, through many cycles of selection of the best
adapted individuals. This exploitation of the natural variation in biological
organisms has given us the crops, plantation trees, farm animals and farmed
fish of today, which often differ radically from their early ancestors.
The
aim of modern breeders is…
the same as that of early farmers - to produce superior crops or
animals. Conventional breeding, relying on the application of classic genetic
principles based on the phenotype or physical characteristics of the organism
concerned, has been very successful in introducing desirable traits into crop
cultivars or livestock breeds from domesticated or wild relatives or mutants.
In a conventional cross, whereby each parent donates half the genetic make-up
of the progeny, undesirable traits may be passed on along with the desirable
ones, and these undesirable traits may then have to be eliminated through
successive generations of breeding. With each generation, the progeny must be
tested for its growth characteristics as well as its nutritional and processing
traits. Many generations may be required before the desired combination of traits
is found, and time lags may be very long, especially for perennial crops such
as trees and some of livestock species. Such phenotype-based selection is
thus a slow, demanding process and is expensive in terms of both time and
money.
That
mean “Biotechnology”- make the application of conventional breeding
methods more efficient.
8Reproduced
mutation breeding
Mutation reproduction-assisted by reproduction
Spontaneous
mutations are the "natural" motor of evolution, and the source to
which breeders tapped to plant crops and "make" better varieties.
-
No
mutation, no rice, or corn or other plants.
Beginning
in the 1970s,
-the
International Atomic Energy Agency (IAEA) and the FAO sponsored research on
mutation inductions to improve the genetic improvement of food and industrial
crops to breed new varieties that improved. Induced mutations are produced by
treating plant parts with chemical or physical mutagen and then choosing
appropriate changes - in effect, to mimic spontaneous mutations and
artificially extend genetic diversity. Absolute mutation induced mutations
generally do not matter regardless of whether the mutant line is used directly
or as a source of new variations in cross-capture program.
The
mutations raised to aid in breeding have resulted in the introduction of many
types of crops such as rice, wheat, barley, apples, citrus, sugarcane and
bananas (FAO / IAEA Variety Database Variants listed more than 2 300 types
officially issued1). The application of induced mutation to plant breeding has
been translated into a remarkable economic impact on agricultural and food
production now being valued in billions of US dollars and millions of hectares
of land planted. Nowadays, mutation techniques have undergone a revival,
extending its use directly in breeding into novel applications such as reverse
genetic and genetic invention.
Thank You
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