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Question: 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?plus glucose, minus lactose:plus glucose, plus lactoseminus glucose, minus lactose:minus glucose, plus lactose:
Assume you have a gel filtration column with unknown matrix. Describe how do you experimentally deteremine its void volume and exclusion limit
Use chi-square test, test whether these two loci show independent assortment? How would you explain the frequency of the progeny genotypes?
What veins are most likely involved? What pathologic changes have happened in these veins, and what is the most probable cause in this patient's case.
Explain the epidemiological attributes of this episode. In which special circumstances can cross-sectional surveys be utilized to test the hypotheses? In your answer explain briefly the characteristics of the cross-sectional study.
What percentage of the father's body was covered by burns? What percentage of the daughter's body received first-degree burns?
It is the accumulation of acetyaldehyde that results in flushed face, dizziness, and light headedness responses that are associated with ethanol intoxication.
With these anatomical features in mind, do research to discover an angiosperm species that has structural modifications to leaves, stems, roots, or flowers that result in adaptive functions. For in case, a California Barrel Cactus has spines in place..
Why benefits are strategically significant to employers and what is some main strategic consideration. What parts of the cell did molecules in this tube probably come from? Describe briefly.
define the relationship between chromatin packaging and transcription rates. Name two different types of chromatin modification associated with changes in gene expression.
Suppose that P is always completely dominant to any number of p's, and that the locus is close to the centromere. What is an expected ratio of purple:white in the progeny of the next crosses.
Please describe how one might search for chemical structure, biologic function relationships, involving small molecular weight lipophylic compounds. Provide one example.
10) The rhomboid muscles are innervated by (the) A) Dorsal scapular nerve. B) Cervical nerves. C) Accessory nerve. D) Long thoracic nerve. E) None of the above.
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