Genes that have DNA sequences similar to functional genes but that do not appear to produce any functional product are ________.
Fill in the blank(s) with the appropriate word(s).
pseudogenes
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The enzyme polynucleotide phosphorylase is capable of generating a random assembly of ribonucleotides
Indicate whether the statement is true or false
An effective test to determine whether an individual is allergic to a specific substance is to
A. test for high levels of IgG in the serum. B. inject high levels of the allergen so see if the patient goes into anaphylactic shock. C. test for levels of IgE specific for the allergen. D. test for the allergen in the blood.
Members of the genus Pseudomonas ________.
A. are obligate intracellular parasites B. perform anaerobic photosynthesis C. are aerobes that mineralize a wide variety of organic compounds D. form cysts when starved for nutrients
When hermit crabs crawl across the ocean floor, they often have sea anemones attached to their backs. The anemones use their dangerous tentacles to keep hermit crab predators at bay, and they dine on the particles of food that the crab does not eat. This
is an example of A) bioremediation. B) alternation of generations. C) symbiosis. D) endosymbiosis.