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A protein that is normally a single-pass transmembrane protein is absent from the cell surface of the mutant cell line YTM-15. When labeled so that the protein can be localized, you find that this protein is now secreted by the cell. Analysis of the amino acid sequence of the transmembrane protein in question reveals sequence changes that could lead to the observed phenotype. The amino acid substitutions lead to alterations in the ER signal sequence and the stop-transfer sequence. In addition, YTM-15 cells exhibit a point mutation in the gene encoding signal peptidase. Only one mutation is consistent with the observed phenotype. What is the underlying cause of the mutant trait? Explain your reasoning.
Each of the properties that follow is characteristic of the carbon atom. In each case, indicate how the property contributes to the role of the carbon atom as the most important at
what is the mode of nutrition in fungi?
Define the Community ecology of disease? Lyme disease is a debilitating infectious disease which has emerged in North America in the last two decades in the landscape context o
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Define Proteins as biological buffers? Proteins have the ability to accept or donate hydrogen ions and by doing so they serve as biological buffers. In blood, there are three i
Q. What are the main risk factors for hypertension? The major risks factors for hypertension are tobacco smoking, stress, obesity, sedentary lifestyle and alcoholism.
Explain the Uses of ISP in meat products Meat products The main application of ISP in connection with meat and related products is based on the use of texturized ISP, in
different types of respiration system in different organisms
Define Placental Transfer of Nutrients? The placenta is n transitory structure developing during pregnancy and lies implanted on the uterine wall. It is connected with the foet
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