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Assume you have isolated three nonsense mutations in a T4 Phage, each of which is unable to reproduce in Wild Type E.coli. You do not know whether these mutations are in the same gene or not. You infect a wild type (nonpermissive)ecoli with to of these phages at a high MOI (culture A). You observe plaque formation collect the lysate and use half of it to infect a nonsense suppressor strain (permissive) at low MOI (culture B) and the second half to infect wild Type Ecoli (nonpermissive) at low MOI (Culture C). Avg. plaque counts for each of these cultures is given for different combination of phage mutants below.
After some week's plants that were transplanted into nonsterile soil exhibited a much higher growth rate compared to the plants transplanted into sterile soil. What would be the most likely explanation for this result.
though , the addition of a trace of uniformly labeled [14C]acetyl-CoA in the presence of an excess of unlabeled malonyl-CoA to a soluble liver fraction yields palmitate labeled with 14C only in C-15 and C-16.
The patient lives near the San Luis Rey River and has no history of foreign travel, blood transfusion, or intravenous drug use. What is the disease? How was it obtained.
What percent of all the enzyme molecules will have their Cys thiol in the active form at pH 8.6. Some mammals might run or fight when frightened. For both of these examples, illustrate the physiological mechanisms involved in the answer.
In a small population of snapdragons experiencing incomplete dominance, 30 percent express the homozygous dominant phenotype of red flowers, 50 percent have the heterozygous phenotype
Epigenetics refers to the modification of genes that affect the DNA sequence itself.
In our experiment, we had 2.0 mM solution and we diluted different volumes of it into sodium carbonate before reading in the spec. These were our dilutions.
A student, who has not learned properly how to prepare solutions, added 25.7 g of sucrose to exactly 150.0 mL of dH2O and assumed that a 0.5 M solution had been prepared. The total solution volume increased to 168.0 ml after sucrose was dissolved and..
Describe why gram-negative bacteria are more resistant to biocides than gram-positive bacteria. Be exact and descriptive in the response. A description of the differences between gram-negative and gram-positive bacteria must be included, along with a..
Explain the nonspecific antimicrobial effects of mucus, lysozyme, and low pH. For each of these substances, list where they are found in the body and how they function in fighting pathogens.
A locomotive train is on its way from Chicago, IL to Madison, WI. The trip is said to last 3.15 hours. When train arrives in Madison the conductor notices it actually took them 3.26 hours.
Assume, a main product of photosynthesis in green leaves, is synthesized by a battery of enzymes. The substrates for sucrose synthesis, D-glucose and D-fructose.
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