Uploaded on Feb 25, 2022
PPT on Genetically Engineered Foods.
Genetically Engineered Foods
GENETICALLY
ENGINEERED FOODS
INTRODUCTION
Genetically engineered (GE) foods
have had their DNA changed using
genes from other plants or animals.
Scientists take the gene for a desired
trait in one plant or animal, and they
insert that gene into a cell of another
plant or animal.
Source: medlineplus.gov
FUNCTION
Genetic engineering can be done with
plants, animals, or bacteria and other very
small organisms. Genetic engineering allows
scientists to move desired genes from one
plant or animal into another. Genes can also
be moved from an animal to a plant or vice
versa. Another name for this is genetically
modified organisms, or GMOs.
Source: medlineplus.gov
PROCESS TO CREATE GE
FOODS
The process to create GE foods is different
than selective breeding. This involves
selecting plants or animals with desired
traits and breeding them. Over time, this
results in offspring with those desired traits.
Source: medlineplus.gov
SELECTIVE BREEDING
One of the problems with selective breeding
is that it can also result in traits that are not
desired. Genetic engineering allows
scientists to select one specific gene to
implant. This avoids introducing other genes
with undesirable traits. Genetic engineering
also helps speed up the process of creating
new foods with desired traits.
Source: medlineplus.gov
POSSIBLE BENEFITS
1. More nutritious food
2. Tastier food
3. Disease- and drought-resistant plants that require
fewer environmental resources (such as water and
fertilizer)
4. Less use of pesticides
5. Increased supply of food with reduced cost and longer
shelf life
6. Faster growing plants and animals
7. Food with more desirable traits, such as potatoes that
produce less of a cancer-causing substance when
fried
8. Medicinal foods that could be used as vaccines or
other medicines
Source: medlineplus.gov
CONCERNS ABOUT GE
FOODS
1. Creation of foods that can cause an
allergic or toxic reaction
2. Unexpected or harmful genetic changes
3. Inadvertent transfer of genes from one
GM plant or animal to another plant or
animal not intended for genetic
modification
4. Foods that are less nutritious
Source: medlineplus.gov
BIOTECHNOLOGY
Biotechnology is providing us with a wide
range of options for how we can use
agricultural and commercial forestry lands.
The cultivation of genetically modified (GM)
crops on millions of hectares of lands and
their injection into our food chain is a huge
global genetic experiment involving all living
beings.
Source: medlineplus.gov
RECOMBINANT DNA
TECHNOLOGY
The use of recombinant DNA technology has
the potential to allow the creation of an
organism which is desired and designed by
human. Genetically Engineered Food (GEF)
means any food containing or derived from a
genetically engineered organism.
Source: medlineplus.gov
SOCIAL AND ETHICAL
CONTRADICTIONS
The emergence of agricultural biotechnology
has created social and ethical contradictions.
The widespread debate exists as to how
biotechnology can be used for planting high
quality high yield crops while protecting eco-
system and human health.
Source: medlineplus.gov
RISK FACTOR
Seed companies argue that viruses have
been engineered to be dormant in plant cells
and therefore they are safe. Contrary to these
claims, studies have shown that viruses,
lacking the gene needed for movement, can
easily gain it from neighboring genes
Source: medlineplus.gov
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