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Q1. Suppose that after washing your hands, you leave ten bacterial cells on a new bar of soap. You next decide to do a plate count of the soap after it was left in the soap dish for 24 hours. You dilute 1 g of the soap 1:10 6 and plate it on standard plate count agar. After 24 hours of incubation, there are 168 colonies. How several bacteria were on the soap? How did they get there?
Q2. Unlike squamous cells, cuboidal and columnar cells have large, open cytoplasms. Which functions of epithelial tissue are supported by having such big cells?
Two linked genes, S and T, are separated by 8 cM. Peter, who has the genotype ST/st, marries Oliviam who is st/st. peter's father was ST/ST. what is the probability that peter and olivia's first child will be St/st? What is the possibility that their..
Suppose that the breeder selects plants that mature in 69 days for the next generation. Approximation the time required for the next generation to mature. What kind of infection do you believe she has in this hand.
A patient has esophageal cancer and should have a feeding tube inserted. The nurse tells the patient that the tube will be inserted surgically into the duodenum. The wife asks why the tube will not be inserted into the stomach directly.
What would your expected results be (growth or no growth) if you transformed bacteria with a plasmid that had ampicillin and kanamynic (another antibiotic) resistance and plated them. Situation growth or no growth and explain your reply.
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..
Chooses the statement that best describes a buffer. A buffer prevents pH of a solution from changing while an acid or base is added.
When Mexican hairless dogs are crosses with normally haired dogs, about half the pups are hairless and half have hair. When, however, two Mexican hairless dogs are mated, about a third of the pups produced have hair, about two thirds are hairless, an..
Clarify the effects of the ecb infestation you used. Were all corn varieties evenly effective at controlling the ecb? How do you know.
Jill is motivated by money and the things money will bring her. Jack is motivated by a belief in the significance of doing good things, and his incentives are based on that belief. Which theory incorporates both these types of motivational causes.
A microscope has a field diameter of 2,000 microns under a total low power magnification of 100 X. This microscope has a 10X power ocular. Given this information, reply the following questions that appear below.
How do these duplications arise and what do they propose in terms of mechanisms of transposition. Could you help to understand FEV1/FVC and how the expected percentage of this figure relates to respiratory problems.
Why was the discovery of microsphere and coacervates an important contribution to understanding of how life might have originated on earth .
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