Question

fill the blank. the shape of the virus is determined by its .........?

Answer 1

The nucleic acid and proteins of each class of viruses assemble themselves into a structure called a nucleoprotein, or nucleocapsid. ... The protein and nucleic acid constituents have properties unique for each class of virus; when assembled, they determine the size and shape of the virus for that specific class.

Answer 2

The shape of the virus is determined by either it's Capsid or it's Nucleic acid.