Why are some mutations of Ras associated with cancer?
A. Ras binds to growth factor receptors.
B. Ras is a type of G protein.
C. Ras is part of the MAP kinase signal
transduction pathway.
D. Ras alters gene expression.
C
Biology & Microbiology
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What is the sex of the individual whose karyotype is pictured?
a. Male
b. Female
Biology & Microbiology
A neutral solution has a pH of
(a) 3. (b) 5. (c) 7. (d) 9.
Biology & Microbiology
Both plant and animal cells have all the following structures EXCEPT
a. a cell membrane. b. a nucleus. c. mitochondria. d. chloroplasts.
Biology & Microbiology
A mnemonic for remembering the taxonomic levels from Domain to Species is "Dear King Phillip Came Over for Good Soup." The word "came" here is a reminder of the taxonomic level of ______.
A) class B) category C) chain D) colony E) culture
Biology & Microbiology