A DNA molecule used to carry a foreign gene into a host organism is called a
A. plasmid.
B. probe.
C. vector.
D. blot.
Answer: C
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Synthesis of a repressible enzyme is inhibited by
A. substrate bound to repressor. B. corepressor and repressor binding to operator. C. repressor alone bound to operator. D. substrate bound to promoter.
Ribosomes are organelles that are involved in ____
a. plasma membrane selectivity b. cellular energy production c. protein synthesis d. transport of materials e. DNA replication
A symbiotic relationship in which both the microorganism and the host benefit is called:
A. commensal. B. mutualistic. C. parasitic. D. virulent
How do inpatients differ from outpatients?
A) Inpatients have internal pain, whereas outpatients have outside wounds. B) Inpatients are admitted to a hospital for at least one night. C) Inpatients cannot wait for a doctor patiently. D) Inpatients have an infectious disease.