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There are a lot of wing mutations for Drosophila. You areobserving a new mutation that codes for crinkled wings. a. When a true-breeding crinkled-wing fly is crossed with atrue-breeding apterous (no wings) fly, all of the F1 progeny arewild type. The same results are seen for the reciprocalparental cross. What […]

About half of all pharmaceuticals, including many effective in neurological problems, are derived originally from plants. Find information and provide your informed explanation why the giant red toadstool, the fly amanita orAmanita muscaria, and the tobacco plant produce neurotoxins. These organisms, as well as many other fungi and plants produce […]

Bacteria are a type of prokaryote that are absolutely everywhere in the world, from dirt to food, and even inside other living creatures. In the past 60 years, scientists have developed some incredible drugs, called antibiotics, to fight bacterial infections. These drugs have saved millions of lives. There is, however, […]

1. Head Jerk Rate Initially, under normal circumstances, the head jerk rate of fishes while looking for worms was very low. They jerked their heads only about 10 times per minute. As the time passed and they sensed no danger the rate increased to 20 times. This is clear evidence […]