Oct4 is an embryonic stem cell specific transcription factor. ESCs grown in petri dishes are fed media that contain basic fibroblast growth factor (bFGF) which keeps the ESCs undifferentiated. They examine Oct4 mRNA levels in human ESCs (hESCs), hESCs with exogenous miR-223 (micro RNA 223), hESCs with exogenous miR-223 that do not have bFGF in the media, and hESCs without bFGF but with miR-223 inhibitor. Which technique would allow for measurement of Oct4 mRNA levels

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Eutrophication caused by human nutrient pollution.

Recently, crops of vegetables such as lettuce and green onions have been contaminated, while they are still on the farm, with bacteria that cause food poisoning. how will science influence the way the government responds to prevent an increase in food-borne diseases? because science has shown that lettuce and green onions are not nutritionally valuable, the government may pass laws that ban the sale of lettuce and green onions. because science has shown that there is no way to prevent bacterial contamination, the government may pass laws that punish businesses that buy lettuce and green onions. because science has shown that the washing of hands prevent the spread of infectious diseases among people, the government may pass laws that require hand washing by everyone who handles food. because science has shown there are ways to find the source of the contamination, the government may pass laws that require farm practices that reduce the contamination of lettuce and green onions.