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You are asked todetermine the concentration of a bacterial culture. You take 1.0 mLof the culture and add it to 4.0 mL of water (Tube #1). You thentake 1.0 mL from Tube #1 and add it to 14 mL of water (Tube #2).Finally, you take 1.0 mL from Tube #2 and add it to 19 mL of water(Tube #3). You then spread 0.20 mL from Tube #3 onto a nutrientagar plate and incubate the plate at 37°C. After 24 hours, youcount 215 colonies on the plate.A. By what factor has the original culture beendiluted in Tube #1? B. By what factor has the ORIGINAL culturebeen diluted in Tube #2?C. By what factor has the ORIGINAL culturebeen diluted in Tube #3?D. What is the concentration of the original bacterial culture?
How might a carnitine deficiency account for triacylglycerol accumulation in the muscles? Would the lipid accumulate in the cytosol or mitochondria of the cells? Explain.
Do you really think the age of the man is main in determining the chance of chromosomal abnormalities? Why or why not with appropriate reasons. Describe a single meiosis event.
The human genome project initially predicted 100,000 genes due to the number of proteins found through western blots. When near completion, computer analysis of the sequence predicted only 30,000 genes. Is the computer program wrong? If not, what is ..
q. a if you give acholeplasma cells access to the mixture of saturated and unsaturated fatty acids they will thrive at
Determine what is it called when individual benefit is maximized by exploiting a resource to ruination?
define conduction velocity.
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
How is the way a fungus "feeds" differenct from the way an animal feeds? what does mycorrhiza mean. what is the difference between spores and seeds. where in the U.S. are edible truffles found?. how do ascomycota discharge their spores?. what does mo..
Flagella occur in both prokaryotes and eukaryotes. WHich of the following statements DOES NOT describe how the flagella of prokaryotes and eukaryotes differ?
Estimate the sequence of hexapeptide on the basis of the following data. When the sequence is not known, a comma separates the amino acids.
How is it possible that mrna synthesis occurs at a greater rate in bacterial cells than any other class, yet very little mrna is present within the cell.
Which of the following is not a feature of prokaryotes? A) DNA is circular B) The nucleus is enveloped with a bilipid layer C) DNA contained in chromosomes D) Discrete organelles
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