What does the height of the bar labeled "Control group" (on the left side of the graph) show?
What will be an ideal response?
the average effectiveness rating of the placebo tea
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Which type of microscopy utilizes lasers that scan across a fluorescently-stained specimen and a computer that focuses
the light to give sharp 3D images?
a. confocal laser scanning microscopy b. phase-contrast microscopy c. bright field microscopy d. scanning electron microscopy e. fluorescence microscopy
The technique by which DNA, RNA, or protein molecules are separated in a gel that is subjected to an electric field is
called ____.
a. PCR b. biotechnology c. amplification d. a restriction enzyme digestion e. gel electrophoresis
The nucleotide sequence in RNA to which RNA polymerase binds is called the promoter
__________________ Indicate whether the statement is true or false.
Bats, birds and dragonflies can all fly. Which of the following groups of animals have some members capable of flights?
A. reptiles, amphibians, and arthropods B. reptiles and mammals only C. mammals and arthropods only D. amphibians and arthropods only E. reptiles, arthropods, and mammals