During which phase of the cell cycle is cyclin degraded, resulting in the transition to G1?
a. during interphase
b. during metaphase
c. during prophase
d. during anaphase
Answer: d. during anaphase
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Which of the following proteins isnot associated with the C-terminal domain of RNA polymerase II?
A. cap binding complex B. RNA-editing terminal uridylyl-transferase C. guanylyltransferase D. polyadenylation factors
Which type of chemical bond is responsible for zipping together the two strands of a DNA molecule?
a. ionic b. covalent c. hydrogen d. van der Waal interactions
During the reabsorption process, ____ of the water in the tubules is returned to the blood
a. 10% b. 25% c. 50% d. 99% e. 100%
What is the fate of H2 produced within a rumen?
A) It is released via eructation (belching). B) It is transformed, along with other ions, into inorganic compounds. C) It is used in acetogenesis. D) It is used in methanogenesis.