How would you design an experiment to test whether a transduction event occurred between two different bacterial strains?
What will be an ideal response?
You would use a selected marker to identify the transductant cells. For example, if the donor cell is thr+ and the recipient cell is thr, the prototrophic transductants can be grown on minimal medium that does not contain threonine, whereas the nontransduced cells still require threonine to grow.
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A patient presents with the following symptoms: anemia, heart failure, pneumonia, paralysis, and abdominal pain
After learning about their family history, you run a genetic test for which disorder?
a. cystic fibrosis b. albinism c. sickle-cell anemia d. achondroplasia e. schizophrenia
The mature male gametophyte is indicated by
a. A. b. B. c. C. d. D. e. E.
A CO2 gradient between the inside and outside of a leaf is maintained during photosynthesis because
A) energy is expended by the plant to maintain the CO2 gradient. B) the CO2 concentration outside of the leaf is always increasing. C) the CO2 concentration in the mesophyll is constantly decreasing. D) the stomata close whenever more CO2 is needed.
The CDC is located in
A) Atlanta, GA. B) Washington, DC. C) New York City, NY. D) Los Angeles, CA. E) Chicago, IL.