I authorize Panhellenic to verify my high school and/or college grades, using my Texas Tech Student ID (R Number.) Additionally, I authorize TTU Panhellenic to share my academic information with the sororities at Texas Tech University.
Viruses consist of a small collection of genetic material (DNA or RNA) encased in a protective protein coat called a capsid. (Retroviruses are among the infectious particles that use RNA as their hereditary material.
This part of the immune system directly targets invading microbes. Our specific immune defenses respond to antigens. An antigen is a protein (or polysaccharide) molecule, typically on the cell membrane, that the body recognizes as nonself.They are found on microbes, foreign cells, or on cancer cells.his part of the immune system directly targets invading microbes. Our specific immune defenses respond to antigens. An antigen is a protein (or polysaccharide) molecule, typically on the cell membrane, that the body recognizes as nonself.