Which of the following is NOT true about regenerative medicine?
A) Stem cells are involved.
B) Repair of damaged tissues takes place.
C) Ethical debates have happened around regenerative medicine.
D) There are no U.S. companies working on regenerative medicine.
E) Regenerative medicine has made progress in bladder and kidney treatments.
D
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Imagine that you have set up a genetic screen to identify E. coli mutants that cannot metabolize the amino acid tryptophan for energy. Beginning with a master plate containing many colonies, you prepare replica plates on medium with glucose or tryptophan as the only energy source. You would look for colonies that _____.
A) cannot grow on either type of media
B) can grow on both types of media
C) can grow only on the plates with tryptophan
D) can grow only on the plates with glucose
A nutrient medium that has all of its chemical components identified and their precise concentrations known and reproducible would be termed
What will be an ideal response?
The figure illustrates a portion of the life cycle of
a(n) a. zygomycete. b. ascomycete. c. basidiomycete. d. glomeromycete. e. lichen.
Why do neurons generate an action potential, instead of simply relying on the opening of ion channels near the stimulus site to transmit information?
What will be an ideal response?