Reference no: EM132837005

1. Describe the process in which the two classes of MHC molecule are loaded:

MHC class I: MHC class II:

2. Utopia City is a large city in a highly advanced civilization in which most of the known diseases can be prevented or cured.You are a public health advisor working for the government, tasked with advising the city leaders on how to KEEP the city safe from future outbreaks. What concerns might arise in such a population? Sanitation aside, what would your advice to the leaders be? Justify why you believe your advice is the correct course of action.

3. Describe the events and checkpoints that happen at each of the following B cell stages:

Early pro-B cell:

Late pro-B cell:

Large pre-B cell:

Small pre-B cell:

Immature B cell:

4. Answer the following questions:

1. Why is the ELISA reaction so sensitive?

2. Why is it important to have?positive?and negative controls in ELISA test? (be specific)

3. What is being detected by the HIV test?

4. What is the difference between polyclonal and monoclonal antibodies?

5. How would you change this ELISA assay to detect viral particles?