A researcher observes a rod-shaped virus under an electron microscope with capsomeres arranged in a spiral. Which virus is likely being observed?
Q1. A researcher observes a rod-shaped virus under an electron microscope with capsomeres arranged in a spiral. Which virus is likely being observed?
Answer: Tobacco Mosaic Virus
Explanation: TMV has a helical capsid made of capsomeres. Adenovirus is tempting because it is a common virus, but it has icosahedral symmetry.