Gel electrophoresis separates the DNA fragments according to ____.
A. their stage in replication
B. their size
C. their ability to bind to the gel
D. the orientation of the nucleotides in the fragment
E. their type
Answer: B
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Transnational companies are those that are involved in
A) international trade. B) production in multiple countries. C) manufacturing in multiple countries. D) foreign sales and marketing in numerous countries. E) international trade, production and manufacturing in multiple countries, and foreign sales and marketing in numerous countries.
Which neurotransmitter stimulates skeletal muscle contraction, slows cardiac muscle contraction rate, and affects
mood and memory?
a. acetylcholine b. epinephrine c. dopamine d. serotonin e. an endorphin
A viral envelope is constructed from identical subunits called capsomeres.
a. true b. false
The defining characteristic of a desert is the high temperature
Indicate whether the statement is true or false