Life extension:
a. works in insects but could not work in humans.
b. can be achieved in species by selectively breeding individuals with the earliest age of maturity.
d. has been achieved using laboratory selection for delayed reproduction.
Ans: d. has been achieved using laboratory selection for delayed reproduction.
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A mutation in the RecC subunit of the RecBCD complex would likely have what effect?
A. The enzyme would be unable to recognize chi sites, unwinding and degrading both strands. B. The 3'-ending strand would be degraded faster than the 5'-ending strand. C. The enzyme would not be able to bind RecA. D. The enzyme would be unable to carry out its major function, which is fork regression. E. The enzyme would be able to perform strand invasion without RecA.
In the higher parts of reefs, where wave energy is greatest, ____ corals tend to dominate
a. platelike b. brain c. soft d. branching e. encrusting
A golfer wants a new set of clubs to improve her game. In an experiment, she goes to the driving range and compares the distance she hits a bucket of golf balls with drivers of different materials in the head before making her purchase decision. In this simple experiment, the standardized variable is the
A. wind direction when the experiment took place. B. type of material used to make the golf ball. C. all of these except the type of material used to make the club. D. angle the ball was hit by the head surface of the club. E. force generated by her swing, when hitting the ball.
Which of the following relationships is mismatched?
A. T. brucei gambiense and Gambian sleeping sickness B. Black flies and Onchocera volvulus C. T.brucei rhodesiense and West African sleeping sickness D. Tsetse fly and African Sleeping sickness E. Teania solium and swine