Which of the following is capable of dephosphorylating molecules?

A. phospholipase C
B. protein kinase A
C. Grb2/Sos/Ras complex
D. phosphatase
E. IP3


C. Grb2/Sos/Ras complex

Biology & Microbiology

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This structure gives rise to lateral roots

a. Casparian strip b. stele c. pericycle d. endodermis e. pith

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In this treatment of bacteria with cold transformation solution followed by heat-shock, the procedure

a. transformed cells. b. nontransformed cells. c. cells that have the gene for resistance to the antibiotic. d. both a and c.

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If photosynthesizing green algae are provided with CO2 containing heavy oxygen (18O), later analysis will show that all of the following molecules produced by the algae contain 18O EXCEPT _____

A) glyceraldehyde 3-phosphate (G3P) B) glucose C) ribulose bisphosphate (RuBP) D) O2

Biology & Microbiology

In the Ames test, bacteria can mutate, even if they cannot grow.

A) True B) False

Biology & Microbiology