HoxC-6 is always expressed posterior to vertebrae 7 during the development of every vertebrate
Indicate whether the statement is true or false
FALSE
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The technique that allows various proteins to be differentiated based on size, once the proteins have been denatured, is
A) SDS-PAGE. B) photobleaching. C) liposome formation. D) ferritin-conjugated lectins. E) the freeze-fracture technique.
Because most roots need gaseous oxygen as well as liquid water, the best soil for agricultural plants is
A. loam, which is a mixture of all size soil particles, and therefore is able to hold water but drain well. B. silt, because it is intermediate between sand and clay in size. C. clay, since it holds onto water better than silt or sand. D. sand, since it has the greatest pore spaces. E. All sizes of soil particles (sand, silt, clay) are equal in soil properties.
A diet high in animal products and hydrogenated vegetable margarine may increase the risk for heart disease. This is because
A) most animal fats are unsaturated and most hydrogenated vegetable margarines contain high levels of steroids. B) most hydrogenated vegetable margarines are hydrogenated oils and most animal products contain high levels of phospholipids. C) most animal fats are used for energy storage and most hydrogenated vegetable margarines contain high levels of unsaturated fats. D) most animal fats are saturated and many hydrogenated vegetable margarines contain high levels of trans fats.
In estimating a fixed effects model using panel data, which of the following variables will not be effective controls if you use a full set of (cross sectional) fixed effects for individuals?
A. Yearly (cumulative) education attainment for individuals B. Birthplace of the individual C. Income taxes paid D. Year to year changes in income for individuals