HOAX OR NOT?
Amphibious Tuber?
Supah Chicken!?
Anna Banana?
Genetically Modified Food
WHAT TO EXPECT Differentiate Genetic Engineering from Crossbreeding
Describe a Genetically Modified Food
Identify the risks and benefits of genetically modified food
Assess the Desirability Quotient of GMF
Before, it was
crossbreeding
Reproduction by parents of different species or varieties of animals or
plants to produce hybrids
Then came
genetic engineering
Altering an organism’s genetic material through
adding, deleting, or changing segments of its
DNA…
…to produce desirable traits or to eliminate
undesirable ones
A process that enables transfer of genes
between different species which would not
interbreed in nature
Crossbreeding
Genetic Engineering
vs.Think-Pair-
Share
+ Slow Process+ Takes 15
years or more to produce
variable new crop variety+ Can only
combine traits from species
that are genetically
similar
+ Relatively faster process+ Usually costs
less+ Allows the insertion of genes from
almost any other organisms into
crop cells
Genetic Engineering somehow prevailed..
:(
And so, the birth of the Genetically
Modified Organism
GMO’s..
crops and food
1. What reason has caused major corn production loss as shown in the video?
2. What is BT Corn? Where did it come from?
3. What actions were taken during the time when most farmers showed dis
Size 4 | SWThink-Pair-
Share
Organisms in which genetic material has been altered in a way that does
not occur naturally
PROJECTED DISADVANTAGES PROJECTED ADVANTAGES
Need less fertilizer Irreversible and unpredictable genetic and ecological effectsNeed less water
More resistant to insects, disease, frost, and drought
Harmful toxins in food from possible plant cell mutations
Grow faster New allergens in food
Can grow in slightly salty soils Lower nutrition
May need less pesticides Increase in pesticide-resistant insects, herbicide-resistant weeds, and plant diseasesTolerate high levels of herbicides
Higher yields Can harm beneficial insects
Less spoilage Lower genetic diversity
According to The United Nations World Food
Programme (UN-WPF)…
According to The United Nations World Food
Programme (UN-WPF)…
There are several potential risks of GM food to Human Health, namely:
Direct health effects (toxicity);Tendencies to provoke allergic reaction;Specific components thought to have nutritional or toxic properties;
The stability of the inserted gene;Nutritional effects associated with genetic modification; andAny unintended effects which could result from the gene insertion.
Which two disadvantages and two advantages (of
GMF) do you think are the most important? Why?
PROJECTED DISADVANTAGES PROJECTED ADVANTAGES
Need less fertilizer Irreversible and unpredictable genetic and ecological effectsNeed less water
More resistant to insects, disease, frost, and drought
Harmful toxins in food from possible plant cell mutations
Grow faster New allergens in food
Can grow in slightly salty soils Lower nutrition
May need less pesticides Increase in pesticide-resistant insects, herbicide-resistant weeds, and plant diseasesTolerate high levels of herbicides
Higher yields Can harm beneficial insects
Less spoilage Lower genetic diversity