If the probability of event A is 3/4 and the probability of event B is 1/4, then the probability of both A and B occurring at the same time is

a. 3/4.
b. 1/4.
c. 1 or absolute certainty.
d. 1/2.
e. 3/16.


e. 3/16.

Biology & Microbiology

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Prions cause damage to the brain called

a. Alzheimer’s. b. neuronal desensitization. c. spongiform encephalopathy. d. feral neuron disjunction. e. none of these.

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Which of the following do proteins and nucleic acids have in common?

A. They are both made of amino acids. B. Their structures contain sugars. C. They are hydrophobic. D. They are large polymers. E. They each consist of four basic kinds of subunits (monomers).

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An individual with the genotype AaBbCC will produce gametes with which possible assortment of genes?

A) ABC, AbC, aBC, or abC B) AaBbCC C) A,B,a,b, or C D) Aa, Bb, or Cc

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The White Cliffs of Dover, a famous landmark in England, is made of limestone, which is really a collection of the pore-studded shells (tests) of

A. foraminifera. B. brown algae. C. dinoflagellates. D. diatoms. E. spirochetes.

Biology & Microbiology