Which of the following model organisms were used in experiments demonstrating that DNA was the genetic material?
A) mice
B) amoeba
C) humans
D) tobacco plants
E) bacteria and bacteriophages
Answer: E
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The greatest expression of the lac operon occurs when lactose levels are _____
A) low and glucose levels are low B) low and glucose levels are high C) high and glucose levels are low D) high and glucose levels are high
What is true about the mutations within a complementation group?
A) They produce the same mutant phenotype. B) They complement each other and are in the same gene. C) They do not complement each other and are in the same gene. D) They complement each other and are in different genes. E) They do not complement each other and are in different genes.
The degree of turbidity in a broth culture correlates to the amount of cell growth.
Answer the following statement true (T) or false (F)
Compared to ELISAs, immunofiltration assays
A. are faster. B. are more accurate C. require more material. D. take more time. E. are less accurate.