Activated Ras ____

a. activates MAP kinase (MAP K)
b. opens a calcium channel
c. triggers gene transcription
d. binds DNA
e. triggers the secretion of growth factors


ANSWER: a

Biology & Microbiology

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Answer the following statement true (T) or false (F)

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A. PCR B. DNA sequencing C. electric or chemical shocks D. gel electrophoresis E. DNA segmentation

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Most genes of an organism

a. show unregulated expression. b. are expressed at high levels. c. are never expressed. d. are expressed only in specific cell types. e. are expressed at low levels.

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