Question

select the statement below which is inaccurate of the envelope of viruses.

a- envelope is composed of host membranes,

b- envelope is acquired through budding/exocytosis

c- envelope contains cell membrane receptors for adsorption

d- envelope is a disguise against host defense.

e- envelope contains spikes for adsorption

Answer 1

Viruses are particles, intermediate between living and the nonliving . All viruses contain the following two components-- a] a nucleic acid genome

b] a protein capsid that covers the genome.

In most viruses, the protein capsid contains inclusions from the host cell membrane. The envelops include some viral glycoproteins which help the virus to avoid the host immune system. These glycoproteins also help to identify and bind to receptor sites on the host membrane.

Ans-- The wrong statement is Option [b] the envelope is aquired through budding/ exocytosis

[ since viruses do not have a cell membrane, budding or exocytosis cannot take place ]