The spores that are released when the zygospore splits open are ________.
A. triploid
B. haploid
C. sterile
D. diploid
E. motile
Answer: B
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A commercially significant human protein now produced in bacteria is
A. hemoglobin. B. gamma globulins. C. AZT. D. human insulin. E. HIV vaccine.
Why are public health officials concerned about smallpox being used as a biological weapon? Give several reasons in your answer
What will be an ideal response?
When a cell binds a signal molecule, it may affect ____
a. gene activity b. protein synthesis c. cell division d. secretion e. all of these
The tendency of molecules to stick together, called cohesion, is stronger in water than other liquids because the polarity of water allows a(n):
A) hydrogen atom from one water molecule to form an ionic bond with the oxygen atom of another water molecule. B) hydrogen atom from one water molecule to form a hydrogen bond with the hydrogen atom of another water molecule. C) hydrogen atom from one water molecule to form a covalent bond with the oxygen atom of another water molecule. D) oxygen atom from one water molecule to form a hydrogen bond with the oxygen atom of another water molecule. E) hydrogen atom from one water molecule to form a hydrogen bond with the oxygen atom of another water molecule.