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Draw the response of a touch-sensitive spinal neuron to changes in three stimuli (gentle, medium, and intense), all of which exceed enough of a stimuli to send the voltage of the cell beyond the threshold for the production of an action potential. Be sure to label all axes.
Assume you decide to make a by placing the promoter region from the Trp operon upstream of the coding region for the enzymes responsible for lactose metabolism.
Define the complement cascade and there are two infection-fighting results of this cascade. What are they and discuss the main components of the reticuloendothelial system
What happens to colonies of bacteria that live in your body when they gain a mutation that helps them tolerate colder temperatures than 98.6? Antibiotic resistance in bacteria.
Cells are capable of replicating their own DNA, which amounts to billions of base pairs, quite efficiently, and yet in a PCR or sequencing reaction we are only able to accurately replicate.
Two true breeding pea plants were crossed. One parent is round, terminal, violet, constricted, while other expresses the respective contrasting phenotypes of wrinkled, axial, full.
The given sequence of a piece of mRNA. Create the sequence of the double stranded piece of DNA from which it was derived. Label the strands: coding, noncoding, template, nontemplate.
In explaining their findings, the authors have ignored a major threat to the validity of their estimates of exposure. Explain and discuss this error.
Using Rasmol produce an image of oxidoreductase structure code 2XXE that, clearly illustrates the location of the catalytic site of the enzyme. State and show in an image the active site residues.
Which protein complex directs DNA bending into loops that contact RNA polymerase and transcription factors bound at the core promoter or with protein complexes bound to proximal promoter elements? Which part of the lac operon is cis-dominant?
You find out an unusual organism growing in the bark of a dying tree. Under a microscope, you observe that its cells are eukaryotic, have cell walls, and do not contain chloroplasts. Into what kingdom would you categorize this organism? Explain the d..
Describe why extinction is necessary aspect of evolution. What would happen if nothing died and there were no extinction?
At one end there is an aldehyde group (call this carbon atom 1). All the other carbon atoms carry OH groups -- they are, then, alcohol functional groups, 5 of them.
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