The ability of DNA polymerase to repair its own nucleotide mismatches is called
____________________. Fill in the blank(s) with the appropriate word(s).
ANS: proofreading
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What functions can complement proteins perform? (Check all that apply.)
_____ amplify the inflammatory response _____ attract phagocytes to the site of infection _____ bind Fc receptors _____ coat invading microbes _____ insert themselves into the foreign cell's plasma membrane _____ provide immunity in response to immunization _____ store "memories" of specific antigens for months or years
Which population's allele frequency is
considered to be fixed?
a. 30 chimpanzees: 100% are AA b. 76 garter snakes: 50% are AA and 50% are aa c. 1100 fruit flies: 100% are aa d. more than one of these e. none of these
Which statement about the Hershey-Chase experiment is false?
A. Protein was labeled with radioactive sulfur. B. The virus-infected bacteria contained radioactive phosphorus. C. DNA was labeled with radioactive phosphorus. D. The virus-infected bacteria contained radioactive sulfur.
In plants, the haploid, multicellular organism is the
A) sporophyte. B) gametophyte. C) zygote. D) spore. E) gamete.