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Ten grams of hamburger were added to 90ml of sterile buffer. This was mixed well in a blender. One-tenth of a ml of this slurry was added to 9.9ml of a sterile buffer. After thorough mixing, this suspension was further diluted by successive 1/100 and 1/10 dilutions. One-tenth of a ml of this final dilution was plated onto Plate Count Agar. After incubation, 52 colonies were present. How many colony-forming units were present in the total 10 gram sample of hamburger?
Would the blood pressure in the pulmonary capillaries at the bottom of a lung be the same as the blood pressure in the capillaries at the top of a lung in the standing individual? Which area would have the lower blood pressure?
Choose any topic on nutrition and discuss it. Should be two to three sheets long with work cited.
Name the muscles involved in increasing the depth of respiration and explain how muscle contraction causes this increase.
Why would homogenized liver be used in the media? What could be the result if liver is not used? d. Is this assay used before or after animal testing
The pK values of the amino and carboxyl groups in free aminoacids in water often differ from the pK values of the N- and C- termini in polypeptide chains.Briefly explain why this is so
I am trying to find trees per acre, regarding the Amazon, Congo, and Australian Rainforests. I need trees per acre for today
The expected ratio of phenotypes among the progeny of a test cross is 1:1:1:1. Out of 200 total resulting progeny, 48 occur in one of the four phenotypic classes. Given this information, which of the following must also be true?
Explain briefly why the relative affinity of the heme for oxygen and carbon monoxide is changed in the protein myoglobin?
Genomic DNA from the nematode worm Caenorhabditis elegans is organized through nucleosomes in the manner typical of eukaryotic genomes, with 145 bp encircling each nucleosome and approximately fifty-five bp in linker DNA.
1. Explain how the ACE inhibitor will lower Syndey's blood pressure. 2. Explain how a calcium channel blocker will lower Syndey's blood pressure.
As a youngster, you drive a nail in the trunk of a young tree that is 3 meters tall. The nail is about 1.5 meters from the ground. Fifteen years later, you return and discover that the tree has grown to a height of 30 meters. About how many meters..
q. what differences in detail do you notice in freshly prepared versus permanently mounted tissue? how did the steps of
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