DNA and Disease

If someone could test your DNA and tell you what diseases you would likely suffer from in 25 years, would you want to know the results? Use examples, including the specific disease you would be tested for, the actual likelihood of contracting the disease if you have a positive test, how this knowledge could help you avoid dying from the disease, and how you think having this knowledge would affect you and your family.

Diseases

Hundreds of human diseases are characterized by a genetic component, such as familial breast cancer. These diseases may run in your family and can currently be tested for. Prepare a 200-word report for your own family members about the current state of knowledge on any such diseases and the tests available. Describe the disease, and indicate how much of the severity of symptoms is due to environmental influences like diet and how much to genetic mutations. If a DNA test is available, indicate whether you would like to know the results of the test, and if the test can accurately predict who will get the disease.

Examine how caccines work against bacterial / viral infection.

What do scientists target on the virus or bacterium? What are antigens? What role do antigens play in creating the vaccine? What are T cells? What are B cells? What are memory cells? What role do these cells play? What are antibodies?

Questions about Muscles for Anatomy & Physiology

I am taking Anatomy & Physiology 1 right now. I am working through the chapter on muscles and wrote down the things I don't understand. I need to be able to understand them better. I read the chapter, but some of them don't make sense and some I just can't seem to find. I am hoping to have these things explained to me in a different way so that hopefully I understand. I have attached my questions to this. I would appreciate your help.

digestion system

Intrinsic and extrinsic factor, plays a key role in digestion here in the stomach. Can you tell me how and why?