What events can lead to offspring having a unique arrangement of their parents' genes?
A. Crossing over
B. Independent assortment
C. Both crossing over and independent assortment
D. Neither crossing over nor independent assortment
Answer: C
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In order to conserve H2O, land plants will close stomata to minimize transpiration, but closing stomata lowers CO2 concentration in the leaf. Drought thus __________ because __________
A. lowers photosynthesis; photorespiration increases B. lowers photorespiration; photosynthesis increases C. lowers photosynthesis; H2O is not available D. increases photosynthesis; photorespiration increases E. increases photosynthesis; CO2 increases
Activator proteins bind to silencer sequences and repressor proteins bind to enhancer sequences
Indicate whether the statement is true or false
Which of the following is not true of polymyxins?
A. They are narrow spectrum. B. They are toxic to kidneys. C. They target cell walls. D. They can be used to treat severe urinary tract infections caused by gram-negative bacilli. E. The source is Bacillus polymyxa.
If leaves were the only food in your diet, you would most likely have:a
more incisors than premolars and molars. b. fewer incisors than premolars and molars. c. an equal number of incisors, premolars, and molars. d. only premolars and molars. e. an incomplete digestive tract.