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1. Consider a protein that contains no ER signal sequence in the N-terminus. It does, however, contain two "start transfer" sequences and one "stop transfer" sequence ( N-term---Start----Stop---Start---C term.) Which of the following statements about this protein is TRUE?A. The N terminus of the protein will be in the ERB. The C terminus of the protein will be in the ERC. It has four membrane-spanning domainsD. Both the N and C termini will be in the ER
2. Which of the following is TRUE concerning nuclear import?
A. Directionality is obtained via GTP hydrolysisB. It occurs co-translationallyC. Proteins must be unfolded firstD. The signal recognition particle is required
3. What usually stimulates the release of neurotransmitters in a pre-synaptic neuron?
A. A decrease in the calcium ion concentration inside the cellB. An increase in the chloride ion concentration inside the cellC. An increase in the calcium ion concentration inside the cellD. An decrease in the chloride ion concentration inside the cell
Calculations must be made assuming that the minimum significant number has four significant digits. If all of phosphorus in a 3.00 gram sample of MgNH4PO4 is extracted and used to make a diphosphorus pentaoxide, what mass of P2O5 could be produced.
Assume if neurons are exposed to a chemical agent that prevents the NA + channels from opening, what would happen to the neuron? What would happen if the K + channels were inhibited?
In metabolically active cells, protons are pumped out of the mitochondrial such that the pH of the mitochondrial matrix is ?8 compared with the neutral pH.
Illustrate the main types of faults and corresponding directions of stress. Differentiate between fault and joint. How does the stress differ between the two? Of what importance are these fractures to other geological processes.
Create a program that will read a file containing variable-length groups of data and report the average value of each group.
Create a pure-breeding double-mutant apricot, blunt line and cross it with wild-type wasps. The F 1 is wild-type in appearance.
What communication channels may you choose for these different departments when delivering messages about the new accounting software system? Why would you choose these specific channels.
Studying and predicting results of experiment conducted with mutant mouse. A researcher recently found out a mutant mouse with an interesting T cell phenotype.
Describe briefly the different experiments performed to identify and confirm the transcription factors required for conversion.
Does the data support your hypothesis? Support your answer with a chi-squared analysis.
What is involved with producing Energy (such as ATP) for muscle contraction. An organelle in the muscle cell that helps distributes the signal to contract by the interior of the cell.
Because the rate of evolution depends on the number of new mutations, which is directly proportional to population size, and the probability of fixation of a new mutation, which is inversely proportional to population size.
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