When comparing gene regulation in prokaryotes to that in eukaryotes, which is better? Justify your
answer.
What will be an ideal response?
Neither is superior to the other; instead, each reflects the nature of the organisms using that system. In
prokaryotes, the entire organism is a single cell so differentiation is not necessary or desirable. Rather,
the genome is organized and regulated to maximize efficiency of a cell during what might be a very
short lifespan. In contrast, multicellular organisms must have cell differentiation for efficiency. This
requires a method of regulation that is not needed or possible in the prokaryotic cell. By regulating
gene expression at multiple stages, the organism can coordinate cell division, differentiation, and body
development. In summary, each type of gene regulation is tailored to the life strategy of the organism
in which it is found.
You might also like to view...
A primary advantage of using integrated nutrient management compared to inorganic chemical fertilizers is that
A. less organic fertilizer is needed than chemical fertilizers. B. only organic fertilizers contain micronutrients. C. organic fertilizers release nutrients more slowly. D. chemical fertilizers are not soluble in water. E. chemical fertilizers break down very slowly.
The Z lines in skeletal muscle are composed of ____
a. discs to which thin filaments are anchored b. stacked thick filaments along with the parts of thin filaments that overlap both ends c. thin filaments but no thick filaments d. thick filaments but no thin filaments e. stacked thin filaments along with parts of thick filaments that overlap both ends
The reef flat of fringing reefs descends into a lagoon
Indicate whether the statement is true or false
In a food chain consisting of four trophic levels, if the energy present in the top level is 48 kcal/m2/yr, how much energy do you expect in herbivores? (Use an energy transfer rate of 10%.)
A. 4,800 kcal/m2/yr B. 4.8 kcal/m2/yr C. 480 kcal/m2/yr D. 48,000 kcal/m2/yr E. 48 kcal/m2/yr