Genetic Modification Continued
Gbogbo ọrọ náà
Genetic modification is not just for medicine. By inserting chosen genes into crop plants, scientists have made maize that fights off insects, soya that survives weedkillers, and rice that carries extra vitamin A to prevent childhood blindness. The promise is huge, but so is the controversy.
In this lesson you will outline the main uses of genetic modification, from human proteins in bacteria to herbicide-resistant, pest-resistant and more nutritious crops, and then (for [Supplement]) weigh the advantages and disadvantages of GM crops such as soya, maize and rice, reaching a balanced judgement of your own.
Ebumnobi
- Outline examples of genetic modification: (a) the insertion of human genes into bacteria to produce human proteins (b) the insertion of genes into crop plants to confer resistance to herbicides (c) the insertion of genes into crop plants to confer resistance to insect pests (d) the insertion of genes into crop plants to improve nutritional qualities
- [Supplement] Discuss the advantages and disadvantages of genetically modifying crops, including soya, maize and rice
Akọmọ Ojú-ẹkọ
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ayẹwo Ẹkọ
Ekele diri gi maka imecha ihe karịrị na Genetic Modification Continued. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.
Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.
Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.
- Inserting a gene so a crop makes its own insect toxin gives the crop: A. herbicide resistance B. insect-pest resistance C. drought resistance D. extra vitamin A Answer: B
- Golden rice has been genetically modified to contain more: A. protein B. vitamin A C. iron D. sugar Answer: B
- A herbicide-resistant GM crop allows farmers to: A. spray weedkiller without harming the crop B. stop watering the crop C. avoid harvesting D. remove all insects Answer: A
- [Supplement] A major ecological concern about GM crops is that: A. they cannot reproduce B. modified genes could spread to wild plants C. they need no soil D. they grow too slowly Answer: B
- [Supplement] An advantage of GM over conventional cross-breeding is that: A. the whole genome is transferred B. only the wanted gene is transferred C. it is always cheaper D. no genes are changed Answer: B
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Àwọn Ìwé Tó Dáa Láti Kà
Meecha Ajụjụ Ule Ọmarịcha
Ị chọrọ ime ajụjụ ule ọmarịcha gbasara Genetic Modification Continued? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
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