Which of the following statement is true for Orthomyxoviruses but NOT Paramyxoviruses: Viral genome is segmented Viral genome is DNA Virions include a layer composed entirely of matrix proteins Viral genome is RNA Virions are enveloped

The diseases SARS, MERS, and COVID-19 are all caused by what family of viruses? Coronaviruses Bacteriophages Herpesvirus Retroviruses Papillomavirus

Which of the following components of a virus is NOT encoded by its own genome? O capsid of HIV O lipid bilayer of HIV envelope O spike glycoproteins of HIV envelope O anchoring structures of bacteriophage

List two to three qualities of the norovirus that make it so infectious.

In addition to shared components of all viruses, enveloped viruses have which structure that non- enveloped viruses lack? O RNA O Internal organelles Antibodies O An outer lipid bilayer MacBook Air DII 888 FB F9 Fア F4 へ & 6. 7 8. この

Which of the following coronaviruses causes the most serve illness in humans? O HCOV-NL63 O HCOV-HKU1 HCOV-OC43 SARS-COV all cause equally severe illnesses

Pick two that are true. When it comes to infecting eukaryotic cells, viruses are a little different because: The viruses lyse themselves more quickly with the aid of bacterial genomes The virion always remains outside the cell envelope The entire capsid can enter the host cell The virus can hide out in special membrane bound areas inside the cell

Which of the following statements regarding viral classification is FALSE? Question options:   all known viruses have been classified into genera and families   all viruses are not descended from a common viral ancestor   some viral families have been classified into orders   the presence or absence of an envelope is one criterion upon which viral classification is based   viral classification is based, in part, on the presence or absence of a capsid   all these statements are TRUE

Which of the following is NOT a true statement about human papillomaviruses (HPV)? There are more than 200 types of HPV, but only some types cause genitourinary infectio Infection by genital wart (condyloma acuminata)-causing types of HPV can be prevented by immunization Infection by cervical cancer-causing types of HPV can be prevented by immunization Almost all women who are initially infected with sexually transmissible HPV will eventually develop cervical cancer Seven types of HPV collectively cause about 80-90% of all cervical cancers

How do viruses recognize their hosts to infect them? They bind receptors on the host cell surface They read the host cell DNA