Final answer:
The correct answer is b) Host cell; Viral genome, indicating that the SARS-CoV-2 virion's membrane comes from the host cell, while its proteins are coded by the viral genome.
Step-by-step explanation:
The SARS-CoV-2 virion membrane is derived from the host cell, while the SARS-CoV-2 virion proteins are derived from the viral genome. Therefore, the correct answer to the initial question is: The SARS-CoV-2 virion membrane is derived from host cell, while the SARS-CoV-2 virion proteins are derived from viral genome, which corresponds to option b) Host cell; Viral genome. Viruses like SARS-CoV-2, which have an envelope, acquire this envelope from the host cell's membrane structures, and it is comprised of a lipid bilayer with embedded proteins. Some of these proteins are coded by the viral genome and help in the attachment and entry of the virus into new host cells, while others may come from the host's own cellular machinery. On the other hand, the capsid and other structural proteins are encoded by the viral genome, which ensures the proper formation and function of the virion.