Which experiment would most likely contain experimental bias? A. A lab performs a test by giving bacterial colonies the same amount of different antibiotics and growing them under the same conditions. B. A company that makes pain relief medication tests the effectiveness of their own medicine compared to that of three other brands. C. A student tests the attraction of bees to flowers by placing four different flowers in the same location and counting how many bees visit each. D. A chemistry class performs an experiment in which each reaction has the same amount of starting material and begins at the same temperature.

A. A lab performs a test by giving bacterial colonies the same amount of different antibiotics and growing them under the same conditions.

Explanation:

thy answer to yee question is to be

"1. it should be, it has been for about 20 years, and it's really not much different in the end than breeding animals to have particular traits. there are always concerns about genetically engineered animals/plants affecting the environment in unexpected negative ways, but i can't think of an example where the fears didn't turn out to be baseless.  

first, as you point out, it would be a great advance in pharmacology, to be able to tailor drugs and their doses to me. the pros involve better medical treatment. the cons involve privacy issues like insurance companies denying coverage to people with genetic risk factors. looking at dna markers wouldn't affect the frequency of genetic diseases, but it would allow detection of them earlier. and ok, actually i suppose that if people used this information to avoid having children with genetic diseases, some might decrease in frequency."