Name the three yeast proteins required for the control of gene expression by galactose. What is the function of each?
What will be an ideal response?
Gal4p is the transcriptional activator that binds to GAL gene upstream activator sites.
Gal80p is the inhibitor that binds and blocks the trans-activating region of Gal4p when galactose is low.
Gal3p is the ligand sensor that inactivates Gal80p when galactose is present.
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The thin filament contains _____ molecules.
A. actin B. myosin C. troponin D. tropomyosin E. All of the choices are correct except myosin
Four of the five answers listed below are members of a common group. Select the exception
a. sea star b. sea anemone c. sea urchin d. brittle star e. sea cucumber
?Four of the following are associated with mushrooms. Which one is the exception?
A. Gills
B. dikaryotic hyphae
C. nuclear fusion
D. meiosis
E. flagellated spores
What kind of curve represents exponential growth?
A) ascending straight line B) J-shaped C) S-shaped D) descending straight line