The Hardy-Weinberg equilibrium demands that all individuals in a population be equal in their ability to survive and reproduce.
a. true
b. false
Ans: a. true
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Which of the following is NOT membrane-associated?
A) NADH dehydrogenases B) flavoproteins C) cytochromes D) Cytochromes, flavoproteins, and NADH dehydrogenases all can be membrane-associated.
A staphylococcal isolate that gives a negative result using the Cefinase disk and tests resistant to penicillin by disk diffusion means that:
a. the isolate may contain the mecA gene. b. the bacteria produce the lactamase en-zyme. c. the isolate is also resistant to ampicillin, carbenicillin, ticarcillin, and imipenem. d. the isolate is also resistant to oxacillin, cefoxitin, and ticarcillin-clavulanate.
When geese or ducks are imprinted, this means that they ____
a. will return to the place they were born to breed and raise their own young b. have become habituated to harmless stimuli c. have been experimentally trained by operant conditioning d. learned the features of a suitable mate during a critical period e. have two nonfunctional copies of a particular gene
What is the type of bond holding hydrogen and oxygen atoms together in a single H2O molecule?
A) ionic bond B) covalent bond C) hydrogen bond