LIFE SCIENCE

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OBJECTIVE LIFE SCIENCE

BIOTECHNOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Several years ago, some crop plants were genetically modified to be immune to the effects of glyphosate, a weed killer that worked well on weeds. As a result, the crop could be sprayed with glyphosate, and the weeds would be killed, but the crop would survive. From an ecological point of view, which of the following is most important to determine prior to planting the resistant crop in farm fields?
A
What effect does the presence of glyphosate-resistant crops have on insect populations in adjacent fields?
B
Is it possible for the gene for resistance to glyphosate to pass from the crop plants to weeds under natural conditions?
C
Does the genetically modified crop produce yields that are better in quality and quantity than those of unmodified varieties?
D
Is the gene for resistance stable enough in the crop plant that it will be passed to the next generation when the crop plant reproduces?
Explanation: 

Detailed explanation-1: -Production of New Toxins In some cases, plants contain inactive pathways leading to toxic substances. Addition of new genetic material through genetic engineering could reactivate these inactive pathways or otherwise increase the levels of toxic substances within the plants.

Detailed explanation-2: -Human genome editing technologies can be used on somatic cells (non-heritable), germline cells (not for reproduction) and germline cells (for reproduction). Application of somatic human genome editing has already been undertaken, including in vivo editing, to address HIV and sickle-cell disease, for example.

Detailed explanation-3: -Genetically engineered organisms pose an enormous risk to human society on a lethal and economic front. Natural lethal pathogens, such as the poliovirus and Y. pestis, can be recreated or improved, and malicious people could use these genetically engineered pathogens to kill millions of people.

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