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Question: Assume you are working in a winery. You just determined that a wine sample contained 3.0 × 108 yeast/ml by measuring its turbidity. Now you want to double check the yeast concentration by viable cell counting. So, you are planning to perform a 10-fold serial dilution and to plate 0.1 ml of each of the three diluted wine samples. To obtain countable plates, what should be your three dilutions?
A haploid cross is made in which the mutant allele has GC at base position 200 in DNA of a certain gene, and the wild type has AT. What proportion of progeny will have the hybrid base pairs GT or AC?
Complete the following table titled 'Applications of Different Observational Study Designs' indicating for every objective under the pertinent study design if objective is 'suitable' or 'not suitable'.
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.
In the telophase stage of mitosis, microtubules gather along the cell's equator. The purpose of these microtubules is to what.
Discuss blood types, the factors in crime situations. Determine what is a criminal case where blood samples were important in the case decision and outcome, what was it about the blood in this situation?
What basic similarities among mammals and differences between mammals (the ingroup) and reptiles (an outgroup) help support the hypothesis that all mammals share a common ancestor.
Suppose that a typical stomach pH of 2.0, how many times more concentrated are the hydrogen ions inside your stomach than in milk?
The "Primordial soup" includes the mixture of elements and gases which are thought to have started life on the Earth. Describe Miller and Urey's experiment.
Explain the cells you were able to see in the blood smear. Are they different than bacterial cells you have observed.What is the reason of immersion oil?
The information to the below were collected for the bovine carbonic anhydrase-catalyzed reaction described by, Use these values to determine the value of KM,
Plan a scientific experiment to find out the effect of this environmental factor on the rate of photosynthesis or cellular respiration in your chosen organism (reviews the scientific method, remember hypothesis, control so on.
Is this an instance of a positive or negative feedback mechanisms? What is the initial stimulus? What is the result.
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