Genetically modified crops Flashcards
What is menat by genetically modifying something?
transferring genes artificially from one species to another
what are herbicides ?
chemicals that farmers use to kill crops
how would you make a plant herbicide resistant (soya beans)
. cut out genes from resistant plant
. transfer into the chromosomes into chose plant (soya bean)
. clone the modified cells to produce genetically modified plants resistant to herbicides
what are the advantges of genetic modification?
. plants that are resistant to herbicides can be sprayed with it to kills pest plants like weeds surroundig it
. leads to incresaed yields as other pest plants are taken away so less competition for space and nutrients
What are the disadvantages of genetically modified plants ?
. the health effect of eating them
. the escape of transferred geens into another species
. the creation of superweeds resistant to herbicides
. unkown long term side effects
Whay would it be importnant to carry out extensive field trials of genetically modified technology?
. to understand the posible health effects on the enviroment
. to identify any possible health problems
. to check if theres a transfer of genes to other species