Three investigators–Nüsslein-Volhard, Wieschaus, and Lewis–won the Nobel Prize for physiology and medicine in 1995 for work they did in 1970 with Drosophila. Briefly describe their findings
What will be an ideal response?
They identified and characterized a number of maternal-effect and zygotic genes that control pattern formation in Drosophila.
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Organisms that require increased pressure for optimum growth are called
A. osmotolerant. B. osmophilic. C. barotolerant. D. barophilic.
Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?
What will be an ideal response?
Which of the following symptoms can help you recognize a person who is undergoing anaphylactic shock?
A. Immediate allergic response after a person is exposed to the allergen that can produce the following symptoms: drop in blood pressure, increased dilation of the capillaries, constriction of the bronchi and the inability to breathe. B. Immediate allergic response after a person is exposed to the allergen that can produce the following symptoms: drop in blood pressure, decreased dilation of the capillaries, constriction of the bronchi and the inability to breathe. C. Immediate allergic response after a person is exposed to the allergen that can produce the following symptoms: an increase in blood pressure, increased dilation of the capillaries, constriction of the bronchi and the inability to breathe. D. A gradual allergic response after a person is exposed to the allergen that can produce the following symptoms: drop in blood pressure, increased dilation of the capillaries, constriction of the bronchi and the inability to breathe. E. None of these are the symptoms of a person undergoing anaphylactic shock.
Which of the following is TRUE
A. Human pathogens belongs to thermophile group B. Obligate aerobes cannot neutralize the toxic by-products of oxygen metabolism C. Facultative anaerobes grow faster during aerobic respiration than during anaerobic respiration D. None of these are TRUE E. At the maximum growth temperature for a microorganism, microbial growth is the most rapid