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Assume you infected an E. coli culture with a virulent bacteriophage. Most of the cells lysed, but a few survived - 1x10^-4. You wonder where the resistant bacteria came from. Were they caused by the bacteriophage infection or did they already exist in the bacterial culture? Earlier, for a different experiment, you ha spread a dilute suspension of E. coli onto solid medium in a large Petri dish, and, after seeing that about 10^5 colonies were growing up, you made an imprint of the colonies on that plate and transferred it to three other plates - a process known as replica plating - which creates identical patterns of the colonies on 3 plates. You realize that you can use these plates to distinguish between the two possibilities. You pipette a suspension of the bacteriophage onto each of the 3 replica plates so that the bacteria can be infected. What result do you expect if the bacteriophage cause resistance? What result do you expect if the resistant bacteria pre-exist?
An amphibian that lives in a swamp has thirty fold more DNA than a human who lives on the forty-eight floor of luxury apartment apartment complex.
In bacterium that possesses antibiotic resistance and potential to persist through very adverse conditions, such as freezing, drying, or high temperatures, DNA have to be located within, or be part of, which structures.
While using ICD-9-CM codes, there are four main steps that should be followed to make sure that the code is an accurate description of the diagnosis. Using Library and other outside references list and describe the four steps essential to establish t..
Discuss how many ways can these chromosomes be assorted into gametes and how many different chromosome combinations are possible when crossing two unrelated flies?
Rarely, hens reverse phenotypic (not chromosomal dew late in life and develop into sprem producing males. If such a male were to be mated to a normal female,what sex ratio will be expected among the offsrping.
Monarch butterfly populations are found east and west of Rocky Mountains. How can DNA fingerprinting technology be used to establish that they constitute one breeding population or two separate breeding populations.
What series of nucleotide pairs in a Drosophila gene will encode the amino acid sequence met-trp-phe-trp-met (reading from the amino terminus to the carboxyl terminus).
Describe the etiology and genetics of the disease phenylketonuria (PKU). Phenylketonuria (PKU) refers to a disease found in the humans in which the affected individual does not have enzyme phenylalanine hydroxylase.
A mole of an assured compound contains 207.7 g of lead and 32.00g of oxygen. Without doing any calculations, tell whether a formula Unit of a compound contains more atoms of lead or more atoms of oxygen. Explain in details.
If I wanted to test the drug to see if it made mice run faster, how could I test that and what would be my control?
Thirteen-year-old Ryan has begun to challenge many of his parents' values and to express his own set of highly idealistic standards. Compare and contrast the explanations for Ryan's behaviour that would be given by Kohlberg and by Erikson.
CC DD and cc dd individuals were crossed and hte F1 generation was backcrossed to get cc dd parent. 903 Cc Dd, 897 cc dd, 98 Cc dd. c and d are 10 m.u apart.
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