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Why is it important for hormones to act at low concentrations andmetabolized quickly? The binding of a hormone molecule to a receptor triggers a complex series of events with in the cell. Why is this complexity neccessary? Why not just have the receptor also be the effectorprotein? Give Two Reasons
Define the biological species concept (1). For what kinds of organisms is the concept useful? (2) Give two concrete examples of when the biological species concept does not work and explain why it fails (2).
Can someone give me a detailed explanation of how to do this? Answer is 1:7.5 40.0 µL of solute into 0.260 mL of solvent. What is the final dilution factor.
Assume you are studying a circular plasmid DNA molecule of size 10,500 base pairs. When you digest this plasmid with 3 different restriction enzymes,
Autophagy is negatively regulated by a complex called mTorc1. When researchers inhibited mTORC1 , the genes related to autophagy(ATGs) were not expressed.What does this suggest about the regulation of ATG expression?
If a myofibril were pulled so that the sarcomeres increased in length by approximately 50 percent, what effect would you expect this to have on the contractile ability of the myofibril? Why? What effects would this have on the H, A, and I bands?
A different walnut rooster was crossed to a rose hen, and all the progeny were walnut. What are the probable genotypes of the parents.
In humans, Hemophilia is caused by a recessive allele on the X chromosome. A human female with normal blood clotting, but whose father had hemophilia, marries a male who does NOT have hemophilia. What proportion of their male progeny will have Hem..
Suppose your diabetic friend is visiting yet again two months later, and you find him unconscious. You're awaiting the paramedics who seem to be taking forever to arrive. Since you know that he is diabetic, should you quickly give him insulin? Why..
A standard curve of absorbance as a function of oxidized DPIP concentration in ug/ml gives the following equation for the trend line: Y=.5X. The reaction volume was 7ml.
What is the difference between phytoplankton and zooplankton and why would you expect different colored seaweeds to grow at different depths?
Mendel conducted monohybrid crosses using pea plants that differed in flower color. The allele for purple flowers is dominant to the allele for white flowers.
The bases in this "glyceronucleic acid" are symbolized as B, D, H, and U. The monomers are linked during phospodiester bonds and the bases form hydrogen bonds between the strands according to the following rules; for every B, there are twice as many ..
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