Match the following
List I | List II | ||
---|---|---|---|
I. | Helical virus | A. | Bacteriophage |
II. | Glycoprotein | B. | Rabies virus |
III. | Complex viruses | C. | Influenza virus |
IV. | Enveloped virus | D. | Measles virus |
If the roots of the quadratic equation \( ax^2 + bx + c = 0 \) are real and equal, then: