GeneticallyModified Foods vs. Genetically Engineered Food, the Delicious Difference.
Hey wait a minute, Just hold on.
GMO's — or genetically modified organisms — refer to the
plants or animals created through the gene splicing techniques of
biotechnology.
In general conversation,
GMO's and GE foods are often used to refer to the same thing they are not.
There is actually a big difference between the two and as
the battle against GE foods escalates, it's important to understand the
difference. All those anti-GMO images we see would be better served by
substituting "GE" for "GMO." here are definitions of both, courtesy of the home garden seed
association.
It is
modern Genetic Engineering that is the subject of much discussion. Genetic
Engineering describes the high-tech methods used in recent decades to
incorporate genes directly into an organism.
The
only way scientists can transfer genes between organisms that are not sexually
compatible is to use recombinant DNA techniques. The plants that result do not
occur in nature; they are 'genetically engineered' by human intervention and
manipulation.
Examples of GE crops currently grown by agribusiness include
corn modified with a naturally occurring soil bacterium for protection from
corn borer damage (Bt-corn), and herbicide-resistant ('Roundup Ready®')
soybeans, corn, cotton, canola, and alfalfa. All of these are larger acreage,
commercial crops. At the present time, home gardeners will not encounter any
packets of GE seeds sold through home garden seed catalogues or garden centre
seed racks.
GMO (Genetically Modified Organism): Defined As An
Organism Produced Through Any Type Of Genetic Modification, Whether By
High-Tech Modern Genetic Engineering, OR Long Time Traditional Plant Breeding
Methods.
Why are There no Seeds in Bananas?
The reason the bananas we eat don’t have seeds is that they
are all sterile. A long time ago the Cavendish bananas first came into being
when a tetraploid banana (that is a plant that has four copies of every
chromosome instead of the normal two) mated with a normal diploid banana. The
result, a banana with three copies of every chromosome couldn’t mate or produce
seeds. One of the steps in making reproductive cells (the analog of human sperm
and egg cells) is the even dividing of a plant’s chromosomes into two
reproductive cells.* Normal diploid cells can easily divide into two cells (one
copy of each chromosome in each cell), tetraploid plants can divide the same
way (two copies of each chromosome in each cell). Hexaploid, three copies in
each and so on. Odd numbers of chromosomes don’t work. The plants can’t
successfully make the cells it needs to reproduce, if it can’t reproduce it
can’t make seeds, and that is why bananas (or seedless watermelons) don’t have
seeds.
Again, while you often hear the GE and GMO used
interchangeably, they have vastly different meanings. Since the beginning of
human history, genes have been manipulated empirically by plant breeders who
monitor their effects on specific characteristics or traits of the organism to
improve productivity, quality, or performance. When plant breeders, working
with conventional or organically produced varieties, select for traits like
uniformity or disease resistance in an open-pollinated variety or create a
hybrid cross between two cultivars, they are making the same kind of selections
which can also occur in nature; in other words, they are genetically modifying
organisms and this is where the term GMO actually applies. GMO has of course,
through nature, also happened among humans.~~~Al Alex-Alexander) D Girvan.
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