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You perform the following serial dilution of a bromophenol blue dye solution: you take 2 μL of the dye solution and add to it 48 μL of water. You then take 5 μL of this diluted solution and combine it with 995 μL water and measure the absorbance at 591 nm in a 1 cm cuvette using a spectrophotometer. The absorbance value is 0.103. The molar absorption coefficient of bromophenol blue dye at 591 nm is 72,800 M-1cm-1 and its molecular weight is 670 g/mol. What is the percent (%) concentration of the undiluted dye solution? Show all your work.
Discuss the role of continuing urbanization in the emerging/reemerging of infectious diseases.
Base-pair substitutions involving the third base of a codon are unlikely to result in an error in the polypeptide. This is because
In your own words briefly (1-2 paragraphs) the process of muscle contraction. Make sure you utilize the following terms: action potential, neuromuscular junction, acetylcholine, sarcolemma
How would you try to improve heart disease if you had unlimited resources? What percent of heart diseases are hereditary?
Write one page bullet points format about scientific article. Article: Desert hedgehog is a mammal-specific gene expressed during testicular and ovarian development in a marsupial.
how antiviral drugs, AZT and ddC, inhibit HIV reversetranscriptase activity, the concept of your design and mechanisms for inhibition
Discuss briefly two different reasons an alanine to valine mutation might be harmful - What type of compound might be the active ingredient
What is melanoma? Common Signs and symptoms seen. Screening assessment tools
question 1 describe the biological and physiological effects of two of these on the brain and the nervous system
1. Name and define all parts of a flower. 2. Besides insects what are some other methods of pollination.
What are the two components of the plant photoreceptor phytochrome?
What do we call a chemical reaction in which two molecules become covalently bonded to each other with the removal of a water molecule?
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