At the onset of infection, the virus introduces into the cell its genetic material —RNA or DNA— accompanied in many instances by essential proteins.
举一反三
- The genetic material of a bacteria is located in the molecule A: RNA B: DNA C: protein D: lipid
- Many thousands of proteins in a typical eukaryotic cell are regulated by cycles of phosphorylation and _______________.
- 核糖体由_____组成 A: Only RNA B: Only proteins C: Only DNA D: RNA and proteins
- The envelope of an animal virus is derived from the____of its host cell.( ) A: cell wall B: cell membrane C: glycolyx D: receptors
- Complex<br/>of DNA and proteins that makes up the chromosomes in a eukaryotic<br/>cell is called ______ .