As in the development of computer hardware, interest in large-scale DNA sequencing is stimulating the development of sequencing devices that (select all that apply)
A. are smaller.
B. have improved capacity through
automation.
C. have improved capacity through opensource
software development.
D. require less energy to operate.
E. none of these
A,B
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Ureaplasma urealyticum generates an electrochemical gradient, despite the absence of an electron transport chain, by synthesizing urea from ammonia/ammonium to generate chemiosmotic potentials.
Answer the following statement true (T) or false (F)
Robert Koch and his colleagues first used agar in bacteriological media. Why was this ingredient an improvement on previous materials used to culture bacteria?
A. Bacteria growing on the solidified medium did not degrade or break down the agar. B. Agar can convert from liquid to solid form, and back again, very easily. C. Agar is a complete source of nutrients for most bacteria. D. Agar was less expensive than the nutrients that Koch was previously using in the lab.
A _______________ is a region where all of the rain eventually flows into a specific river
a. groundwater region b. residence time zone c. sublimation area d. watershed
In what part of a cell would you find most of a cells genetic material
a. Plasma membrane b. Cytoplasm c. Nucleus d. Mitochondrion e. Centrosome