An organized group of specialized cells is called a(n) organ
Indicate whether the statement is true or false.
ANSWER: False - tissue
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ALL mushrooms are basidiomycetes
Indicate whether the statement is true or false.
The function of DNA ligase in recombinant technology is to
A. carry DNA into a new cell. B. cut DNA into many fragments. C. seal DNA into an opening created by restriction enzymes. D. separate fragments of DNA by their length and electrical charges. E. make millions of copies of a specific segment of DNA.
Passive immunity differs from active immunity in that passive immunity
A) causes long-term immunity. B) involves the administration of preformed antibodies. C) results in the production of antibodies. D) is not effective against a preexisting condition. E) results in the production of memory cells.
NADPH is produced by
A. neither the light reactions nor the Calvin cycle. B. the Calvin cycle alone. C. light reactions alone. D. both light reactions and the Calvin cycle. E. NADPH production is not a part of photosynthesis.