Let's our mind do some exercise!!!

I post some new questions on myspace.com! I am now posting those questions here! Let's exercise our mind!!!

The procedures of DNA fingerprinting.

　

The parents have one daughter and one son together, one daughter is from the mother's previous marriage, and one son is adopted, sharing no genetic material with either parent.

After amplifying the VNTR DNA from each member of the family, it is cut with a restriction enzyme and run on an agarose gel. Here are the results:

Let's guess! Who is Megabucks kid? X ,Y ,Z are women who claim to have child by Megabucks

　

DNA samples were taken from a crime scene, the female victim and two suspects in a sexual assault case. The victim’s boyfriend was also tested. The DNA ladders are used to judge the sizes of the DNA fragments. Control samples are also run, to ensure that the experiment is done correctly.Can you determine which suspect is likely the criminal?

　

Okay now do you gave any idea who did it?

What type of immunity it belongs to? Innate? Adaptive?

　

Do you have any idea about this pic? What is this? Allergies result from the production of what type of immunoglobulin directed against an antigen? A. IgG B. IgA C. IgM D. IgE

　

　

　

Are you ready for the new challenge? What type of cell is the most abundance in the serum? Why AIDS is called acquired immunodeficiency syndrome? Why human suffer AIDS will lose their immunity? What type of cell will suppress at first?
What can indicate that you have already suffered AIDS?

　

　

Do you have any idea what type of cell will react with foreign substance first? What kind of cluster differentiation molecules indicate that you have already suffered skin cancer? How do you know you have chronic lymphocytic leukemia?