Kinesin 1 is highly processive motor, taking more than 100 steps (covering 1 ?m along a microtubule) before dissociating, primarily because
A) it hydrolyzes ATP more rapidly than other motors.
B) one of its two heads is always attached in it hand-over-hand mechanism.
C) light chains at its nonmotor end attach to cargo vesicles.
D) its efficiency of converting ATP hydrolysis energy to useful work is 60–70%.
E) All are required for processivity.
Answer: B
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a. radiometric dating b. uniformity c. meteorology d. astrobiology e. comparative morphology
Digestion of starches begins in the:a
mouth. b. stomach. c. duodenum. d. jejunum. e. large intestine.
Fraternal twins
A. have exact copies of each other's DNA. B. are usually of opposite sex. C. are only as alike as any other siblings. D. will usually occur at the first pregnancy.
Individuals with AB blood type are called "universal donors" because they do not have antibodies against blood group antigens.
Answer the following statement true (T) or false (F)