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Think about a strain of E. coli that has a mutation in the gene encoding the IIA protein of the phosphotransferase system. The transport of glucose is not affected by this mutation; the mutant IIA protein can be phosphorylated and the phosphate group is transferred to glucose just as it occurs in the wildtype strain. However, phosphorylation of the mutant IIA protein does not affect its interactions with LacY and adenylate cyclase; i.e. - the phosphorylated form of the mutant IIA protein interacts with LacY permease and adenylate cyclase in a manner identical to the unphosphorylated form of the wildtype IIA protein. How will the lac operon be expressed in this mutant strain of E. coli in the following conditions?a. pplus glucose, minus lactose:b. p pLus glucose, plus lactosec. iminus glucose, minus lactose:d. mmiinus glucose, plus lactose:
Assume that a sample of red blood cells at a concentration of 2.69 x 106 cells/ml is serially diluted 1/10 three times and then serially diluted 1/2 two times.
Madagascar, Indonesia and the Amazon basin have some of the greatest numbers of different species concentrated in a single area. What kinds of environments do you think encourage greater biodiversity.
Unlike bilaterally symmetrical animals, radically symmetrical animals are almost never able to move themselves from place to place.
Suppose that you require to dilute a 3mM solution to a concentration of 1 x 10-6 M. Pipettors that dispense volumes ranging from 10~100.
As a laboratory assistant you were asked to determine the total number of bacteria in the urine of a person with a urinary tract disorder.
Eye color is expressed thrugh two genes A and B. Dark brown eye color, A, is dominant over lighter brown a. Eye pigment, B, is dominant over lack of eye pigment, b.
Explain the probability that the first child of parents who are heterozygous for both traits will show the achondroplasia however not the Huntington's disorder?
How to write a discussion section for my electroencephalogram (EEG) lab report when all charts and data are already present.
Discuss chromosomal condition results in an organism being only half as fertile as a wild type individual of the same species?
Albinism is an autosomal recessive disease. Dimples are autosomal and dominant to no dimples. A normal woman with no dimples marries a man normal man with dimples.
sketch the chromosomes of the parents and the F1. analyse interference and say what you think of its significance.
In the telophase stage of mitosis, microtubules gather along the cell's equator. The purpose of these microtubules is to what.
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