Which mathematical symbol represents the carrying capacity of a population?
A) K
B) r
C) J
D) S
A
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A common substrate for industrial fermentation products is ________.
A. nucleotides B. alcohol C. cholesterol D. molasses
Which of the following structures are not associated with ion regulation in animals?
A. nasal salt glands B. malphigian tubules C. tear ducts D. kidneys
In response to the presence of extracellular antigen, B cells rapidly proliferate and the immunoglobulin M (IgM) proteins produced are soluble rather than anchored in the membrane.This change in IgM protein state is due to:
A. the cleavage of several hydrophobic amino acid residues from the IgM protein. B. the differential expression of two different IgM genes. C. the predominant use of the first 3' end cleavage site of the IgM pre-mRNA. D. inclusion of the M exon in mature IgM mRNA.
Beatrice Mintz and others microinjected DNA into a fertilized mouse egg that after reaching maturity could be transmitted to the mouse's offspring. What is the general term used to describe an organism that incorporates foreign DNA?
What will be an ideal response?