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Using bacteriophage P22, you performed a three-factor cross in Salmonella typhimurium. The cross was between an Arg-Leu-His- recipient bacterium and bacteriophage P22, which was grown on an Arg+ Leu+ His+ strain. You selected for 1000 Arg+ transductants and tested them on several selective media by replica plating. You obtained the following results:Arg+Leu-His- 585 Arg+Leu-His+ 300Arg+Leu+His+ 114 Arg+Leu+His- 1What is the order of the three markers?
A friend claims that the faster you read, more you remember. Use your information of effortful processing and effective encoding strategies to refute your friend's claim.
Assume you ask is to work with the genetic code and examine the structure and characteristics of the amino acids used to make proteins and answer the following question.
Calculate the amount of ATP equivalents produced by total catabolism of adenosine compare this with ATP equivalents produced by total catabolism glycine.
A drug that does not dissociate has a molecular weight of 300. If 300 g of this drug are dissolved in 1000 ml of water, determine the osmolarity of resulting solution?
Below is a segment of bacterial Lac Operon sequence. An E. coli transcript with the first 5 nucleotides 5' AUGU3'. Write the sequence of the primary RNA transcript starting at 5' aUUGU3'. include polarity of the transcript.
Suppose an ecologist is studying interactions among different species in an ecosystem. What level of organization should the ecologist study?
What are the steps in enzyme-substrate reaction. The enzyme most frequently study is bovine alkaline phosphatase. Alkaline phosphatase hydrolyze the artificial substrate p-nitrophenylphosphate (pNPP) giving us a way to create quantitative measu..
You need to prepare medium for your culture cells. Your salt solution is 10x concentration, dilute to 1x for use. You also need to add fetal bovine serum for a final concentration of 10%. What would you add of each for the correct concentration in..
What is the difference between lactococcus lactis and staphylococcus epidermis? I am doing a lab and I've found out that my bacteria are gram positive cocci that ferment lactose and mannitol. I have it narrowed down to lactococcs lactis and staphyloc..
Suppose a fire hose ejects a stream of water at an angle of 38.8 ° above the horizontal. The water leaves the nozzle with a speed of 26.6 m/s.
Illustrate four organelles or structures that all eukaryotic cells have in common. In adding, describe two eukaryotic cell features that would be found only in autotrophic cells.
Two strands of a DNA molecule are radio-labeled such that each strand can be uniquely identified. After three bouts of replication, how many new molecules of DNA are formed? How many strands of DNA are radio-labeled? Are both radio-labeled strands..
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