The nematode, C. elegans, and humans have nearly identical numbers of protein coding genes, yet humans have much more complex organismal features. This is an example of:
a. the importance of regulatory networks.
b. the G-value paradox.
c. cell size paradox.
d. A and B.
e. None of the above.
D
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Recombinant human monoclonal antibody (rhuMAb)
A. appears promising as a treatment for asthma. B. decreases the levels of IgG. C. uses an engineered form of an IgG molecule. D. promotes crosslinking between IgE molecules on the mast cells. E. appears promising as a treatment for asthma AND uses an engineered form of an IgG molecule.
How can humans perceive multiple sounds at once?
a. Each portion of the basilar membrane vibrates at a unique frequency, and multiple regions can be stimulated at the same time. b. The more frequencies of sounds that are present, the further the sound travels into the cochlea. c. We have two ears, each perceiving a subset of frequencies in the environment. d. The fluid in the middle ear can transmit multiple frequencies to the oval window. e. Sounds reaching the left or right ear result in different nerve impulses.
Using your knowledge of the age of lithospheric crusts and biogenous sediment accumulation, explain why it would be fruitless, not to mention expensive, to excavate for oil far off the coast, beyond the continental shelf
What will be an ideal response?
Once a hormone activates the enzyme adenylyl cyclase, ATP is converted to cAMP, which in turn:a
activates protein kinase. b. inhibits phosphodiesterase. c. initiates more cAMP production. d. initiates protein synthesis. e. inhibits protein synthesis.