And the Passive Voice
By Isabel Rubio IES Infante Don Juan Manuel. Murcia
What do you know about
Write as many words/sentences as you can
Check this vocabulary
Crop According to
Let’s revise on
What’s a hybrid?
A hybrid is the offspring of two plants or animals
of different species or varieties.
A mule is the offspring of a donkey and a horse.
Horse + donkey=mule
What’s artificial selection?
We call Selective breeding or artificial selection
when people cross certain species to produce
Pedigree dogs come in lots of different varieties (or
breeds); they may be different colours and sizes, but they
are all still dogs.
What’s a cell?
The smallest structural and functional unit of an organism,
typically microscopic and consisting of cytoplasm and a
nucleus enclosed in a membrane.
What’s a chromosome?
A chromosome is a threadlike structure of nucleic acids
and protein which is found in the nucleus of most living
cells, carrying genetic information in the form of genes.
Each chromosome consists of a DNA
(Deoxyribonucleic Acid) double helix bearing
a linear sequence of genes.
Bacteria and viruses lack a nucleus and have
a single chromosome without histones.
What does GM mean?
A genetically modified organism (GMO) or
genetically engineered organism (GEO) is an
organism whose genetic material has been
altered using genetic engineering techniques.
Genetic engineering enables scientists to create
plants, animals and micro-organisms by
manipulating genes in a way that does not occur
Genes from one species can be artificially
inserted into another, unrelated one.
GM organisms have new abilities - such as maize
that produces its own pesticide - which is disease
and drought resistant.
Benefits: GM insulin
Natural insulin can be taken from the pancreases
of pigs or cattle, but this insulin does not suit some
people and is limited in supply.
Nowadays most insulin is synthesised using
genetically modified (GM) bacteria.
The gene for insulin secretion is cut from a length
of human DNA, and inserted into the DNA of a
bacterium. The bacterium is then cultivated and
soon there are millions of bacteria producing
What is a Genetically
Modified (GM) Food?
Foods that contain an added gene sequence.
Foods that have a deleted gene sequence.
Animal products from animals that have been
fed with GM food.
Products that have been produced by GM
Common GM Foods
Tomatoes Sugar cane
Rice Cotton seed oil
GM potato in EU
The cultivation of a genetically modified potato
and the use of three types of altered maize were
approved by the EU in March 2010.
It’s called Amflora and it’s developed by BASF
(Germany); it will be grown in Germany and the
Czech Republic this year, and in Sweden and the
Netherlands in 2011.
- According to Basf, starch will be produced for
paper production to help save "raw materials,
energy, water and oil-based chemicals”.
- BASF says that starch from its GM potato will not
be used in human food but it will be used to feed
Genetically modified food must be labelled.
It is not obligatory to label foodstuffs such as
milk, meat, or eggs from animals that have
been fed with GM food.
of GM Foods according to big companies
Development of crops which are:
What’s wrong with GM?
A monopoly on seed stocks by giant
multinationals, such as Monsanto.
Farmers must sign a contract that specifies that
they can’t plant the seeds the following year or
use any herbicide other than the corporation's
Who is behind?
The multinational biotech companies
such as Monsanto and Bayer, who
develop GM crops, own the rights to the
varieties they develop, which allow them
to generate vast profits.
They make even more money by making
their crops resistant to just one brand of
herbicide - their own.
Dangers of GMO
There is still little scientific study about health risks.
They can contaminate the environment with
genetic pollution that is impossible to clean up.
Dangers of GMO
Potential risks to human health.
The risk of allergenic reactions may increase.
Wildlife and beneficial insects may be harmed.
Insects might develop resistance to pesticide
used in GM crops.
Why most people say “No”
These genetically modified
organisms (GMOs) can spread
through nature and interbreed
with natural organisms,
Non 'GE' environments can be
Genetic pollution is a major threat
because GMOs cannot be
recalled once they have been
released into the environment.
Why most people say “No”
Because the public is being denied the right to
know about GE ingredients in the food chain.
Why so many people say
Biological diversity must be protected and
respected as the global heritage of humankind,
and one of our world's fundamental keys to
Watch this video and
answer the questions
What GE crops are mentioned in the video?
Where are these crops cultivated?
Who owns 90% of the GE crops?
What consequences can GE have? Why?
What can happen to non-GE crops?
Who produces the pesticides and herbicides for
How do GE crops affect humans or animals?
More info about GMO
Info about DNA: BBC
Info about insulin: BBC