A solution of 65 percent water, 35 percent solute is more concentrated with respect to solute than a
solution of 70 percent water, 30 percent solute.
Indicate whether the statement is true or false.
T
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During which meiotic phases does oogenesis arrest?
A. prophase I and metaphase II B. prophase I and prophase II C. metaphase I and prophase II D. metaphase I and metaphase II E. metaphase I and anaphase II
In an in vitro translation assay radioactive amino acids can be incorporated into proteins and the proteins separated from the unincorporated amino acids
Given the following data what are the conclusions that you would come to? RNA added to reaction Amount of radioactivity in protein in counts per minute Insulin mRNA alone 10,000 Insulin mRNA with antisense insulin mRNA 3,000 Insulin mRNA with antisense fibronectin RNA 11,000 No mRNA 150 Insulin mRNA with double stranded insulin RNA 500 A. Double stranded RNA is more efficient at inhibiting translation than antisense RNA B. Antisense RNA is more efficient at inhibiting translation than double stranded RNA C. No conclusion about the efficiency of translation inhibiton can be made as the positive and negative controls did not perform appropriately D. The experiment did not work since the antisense fibronectin did not have an effect on amino acid incorporation. Blooms Level:
Yops proteins, produced by Yersinia pestis,
A. interfere with phagocytosis. B. activates plasminogen activator. C. destroys C3b and C5a. D. promotes apoptosis.
In eukaryotic cells, what name is given to the region between the nucleus and the plasma membrane?
A) cytoplasm B) phospholipid bilayer C) nucleoid D) chloroplast