An organism that is able to be transmitted from one host to another is said to be ________.
A. infective
B. communicable
C. virulent
D. pathogenic
Answer: B
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If an enzyme's optimal temperature is 37?C, you also know that
a. the enzyme has a cofactor. b. the enzyme is likely to be active at 30?C and at the same reaction rate. c. the enzyme will probably be inactive at a pH below 4.5. d. the enzyme will completely denature at 38?C. e. the enzyme's activity will drop at temperatures above 37?C and likely be eliminated by 60?C.
Cells with two of each kind of chromosome are _____
a. aneuploid b. diploid c. triploid d. haploid e. tetraploid
All of the following conditions are necessary for an instrumental variable Z to be a valid instrument for X in the regression: Yi = ?0 + ?1Xi + Ui except for which condition?
A. Cov(Xi, Zi) ? 0 B. Cov(Xi, Yi) ? 0 C. Cov(Zi, Ui) = 0 D. None of these choices are correct.
Membrane curvature is influenced by the differential lipid composition of the two membrane monolayers
Which factor do you think has the largest impact on the curvature of biological membranes? (a) amount of cholesterol (b) charge of the lipid head group (c) length of the hydrocarbon tails (d) size of the lipid head group 11-26 Glycolipids are found on the surface of healthy cells, and contribute to the cell's defense against chemical damage and infectious agents. A. In which organelle are sugar groups added to membrane lipids? B. By what mechanism are glycolipids transported to the plasma membrane and presented to the extracellular environment? Draw a diagram to support your answer to part B. Membrane Proteins