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A student attempts to transform a population of E. coli with a pBluescript plasmid. How do you advise him to identify cells that have the plasmid? Answer Plate the cells on a medium containing X-gal. Cells with plasmids will turn blue. Plate the cells on a medium with ampicillin. Cells with plasmids will grow. Plate the cells on a medium with the restriction enzyme EcoRI. Cells with the plasmid will grow. Infect the cells with bacteriophage T3. Cells with the plasmid will transcribe the inserted gene and not be able to grow. Isolate individual colonies and prepare DNA from each. Size the DNA on an agarose gel to see if plasmids are present.
Which one of the following statements is true.
Briefly describe how an F+ bacterium becomes an Hfr bacterium and what occurs in conjugation between the Hfr and an F- recipient bacterium.
At a beuty salon one might request a "permanent" to alter the shape of ones hair which is chiefly composed of fibrous proteins known as keratins. to increase the waves or curls in one's hair, the beatician treats your hair with a reducing agent ( ..
This rise is proportional to the starting concentration of sucrose in the solution. A metabolic poison that blocks the ability of cells to regenerate ATP is found to inhibit the pH changes in the solution. Recommend a hypothesis accounting for these ..
The process by which organisms acquire DNA from different species is most accurately referred to as.
Down syndrome is the result of an extra 21st chromosome in humans. In the process of meiosis for the mother, give all possible stages where it could lead to an offspring with Down syndrome,
what are some proteins that cause diseases, how do they cause the disease and what is the function of the proteins?
Which method is commonly used for improving cattle breeds and why?
Should the patient receive Rh-positive or Rh-negative cell units for transfusion?
Assume if you analyzed the average size of individuals in many dog and wolf populations around the world, how would you use this to determine where and when dogs were domesticated from wolves?
how can You characterize a new enzyme's kinetics. No, the activity does not change with increasing enzyme concentration correctly. The enzyme may be only active in a dimer that forms a high concentration.
Discuss how would a disease or disorder that interferes with acetylcholine receptors at neuromuscular junction affect muscle strength?
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