What is the relationship between operators, transcription units, and operons?
a. Operators are comprised of transcription units and operons.
b. Operons are comprised of transcription units and operators.
c. Operators are comprised of multiple transcription units associated with a single operon.
d. Operons are comprised of multiple operators associated with a single transcription unit.
e. Operons are comprised of multiple transcription units associated with a single operator.
B
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What is the proper way to write a species name?
a. Pantera b. Pantera Leo c. Pantera leo d. pantera Leo e. pantera leo
In the accompanying diagram, ____ indicates the location of chyme production
a. A b. D c. E d. F e. G
All of the following are actin-dependent nonmuscle motilities except
A) extension of the ER. B) cleavage furrow constriction in cytokinesis. C) chemotaxis. D) cyclosis or cytoplasmic streaming. E) amoeboid movement.
Duffy factor is due to a chemical that occurs on the membranes of red blood cells and is sometimes used as a blood-typing attribute in the same way that ABO and Rh factor blood types are used
Recent research has found that people with Duffy factor are about 40% less likely to be infected with HIV, given similar circumstances. Given that HIV affects white blood cells, how would you characterize the Duffy factor gene, and why?