Covalent bonds ____
a. occur when ions of opposite charge are attracted to each other
b. occur during oxidation reactions
c. are the weak link between two water molecules
d. are extremely strong and stable
e. form bonds that hold Na and Cl together in NaCl (table salt)
ANSWER: d
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Knowing the genome of Mu bacteriophage now enables researchers to locate where it incorporates into bacterial genomes
Indicate whether the statement is true or false.
The figure represents the development of ____
in eukaryotic cells. a. the nuclear envelope b. mitochondria c. chloroplasts d. Golgi bodies e. chromosomes
What is the name of the process by which mitochondria and chloroplasts probably evolved?
a. endocytosis b. endosymbiosis c. exocytosis d. exosymbiosis
The drug level required for the clinical treatment of a particular infection is called the
A. therapeutic index. B. minimal inhibitory concentration. C. therapeutic dose. D. toxic dose.