Welcome to the Classification of viruses MDCAT MCQs with Answers. In this post, we have shared Classification of viruses Multiple Choice Questions and Answers for PMC MDCAT 2024. Each question in MDCAT Biology offers a chance to enhance your knowledge regarding Classification of viruses MCQs in this MDCAT Online Test.
Which of the following is a criterion for classifying viruses?
a) Type of nucleic acid
b) Size of the virus
c) Number of host organisms
d) Shape of the host cell
What type of nucleic acid is found in retroviruses?
a) Double-stranded DNA
b) Single-stranded RNA
c) Double-stranded RNA
d) Single-stranded DNA
Which virus family is characterized by having an icosahedral capsid and double-stranded DNA?
a) Herpesviridae
b) Papillomaviridae
c) Adenoviridae
d) Parvoviridae
Which of the following viruses is classified under the family Picornaviridae?
a) Influenza virus
b) Poliovirus
c) Herpes simplex virus
d) Human Immunodeficiency Virus
What is the main feature used to classify viruses into the family Orthomyxoviridae?
a) Presence of a lipid envelope
b) Segmented RNA genome
c) Icosahedral capsid
d) Double-stranded DNA
Which virus family is known for having a helical capsid and an RNA genome?
a) Retroviridae
b) Coronaviridae
c) Rhabdoviridae
d) Herpesviridae
Which virus is classified as a member of the family Retroviridae?
a) Hepatitis B virus
b) Influenza virus
c) HIV
d) Hepatitis C virus
What feature distinguishes viruses in the family Reoviridae?
a) Single-stranded RNA
b) Double-stranded RNA
c) Lipid envelope
d) Helical capsid
Which virus family is characterized by its ability to cause chronic infections and include Hepatitis B virus?
a) Hepadnaviridae
b) Retroviridae
c) Herpesviridae
d) Picornaviridae
Which virus family includes the human herpes simplex virus?
a) Herpesviridae
b) Picornaviridae
c) Retroviridae
d) Orthomyxoviridae
Which classification criterion is used for viruses in the family Coronaviridae?
a) Presence of a lipid envelope
b) Segmented RNA genome
c) Icosahedral capsid
d) Double-stranded DNA
Which virus family includes the viruses that cause common colds and SARS?
a) Coronaviridae
b) Picornaviridae
c) Retroviridae
d) Rhabdoviridae
Which virus family is known for causing smallpox?
a) Poxviridae
b) Herpesviridae
c) Adenoviridae
d) Retroviridae
What type of genome is found in viruses of the family Picornaviridae?
a) Single-stranded DNA
b) Double-stranded RNA
c) Single-stranded RNA
d) Double-stranded DNA
Which virus family includes the Human Papillomavirus (HPV)?
a) Papillomaviridae
b) Herpesviridae
c) Picornaviridae
d) Retroviridae
What is the main feature of viruses in the family Parvoviridae?
a) Double-stranded DNA
b) Single-stranded RNA
c) Lipid envelope
d) Icosahedral capsid
Which family does the virus responsible for rabies belong to?
a) Rhabdoviridae
b) Coronaviridae
c) Picornaviridae
d) Herpesviridae
What characteristic is used to classify viruses in the family Paramyxoviridae?
a) Single-stranded RNA
b) Double-stranded RNA
c) Icosahedral capsid
d) Presence of a lipid envelope
Which virus family is known for causing diseases such as mumps and measles?
a) Paramyxoviridae
b) Retroviridae
c) Picornaviridae
d) Poxviridae
Which type of nucleic acid is found in viruses of the family Adenoviridae?
a) Single-stranded DNA
b) Double-stranded RNA
c) Double-stranded DNA
d) Single-stranded RNA
What is the primary classification criterion for viruses in the family Picornaviridae?
a) Presence of an envelope
b) Single-stranded RNA genome
c) Double-stranded DNA genome
d) Helical capsid
Which virus family includes the viruses that cause chickenpox and shingles?
a) Herpesviridae
b) Papillomaviridae
c) Picornaviridae
d) Poxviridae
What is a distinguishing feature of viruses in the family Retroviridae?
a) Single-stranded RNA genome
b) Double-stranded DNA genome
c) Presence of a lipid envelope
d) Icosahedral capsid
Which virus family includes the causative agent of hepatitis C?
a) Flaviviridae
b) Retroviridae
c) Herpesviridae
d) Picornaviridae
Which virus family includes the viruses responsible for hemorrhagic fevers such as Ebola?
a) Filoviridae
b) Paramyxoviridae
c) Rhabdoviridae
d) Picornaviridae
Which virus family is known for causing warts and cervical cancer?
a) Papillomaviridae
b) Herpesviridae
c) Picornaviridae
d) Retroviridae
Which virus family includes the causative agents of cold sores and genital herpes?
a) Herpesviridae
b) Picornaviridae
c) Retroviridae
d) Paramyxoviridae
Which virus family is characterized by a segmented RNA genome and includes the influenza virus?
a) Orthomyxoviridae
b) Paramyxoviridae
c) Reoviridae
d) Picornaviridae
Which virus family includes the common cold virus, rhinovirus?
a) Picornaviridae
b) Coronaviridae
c) Paramyxoviridae
d) Herpesviridae
What is the classification criterion for viruses in the family Poxviridae?
a) Double-stranded DNA genome
b) Single-stranded RNA genome
c) Presence of a lipid envelope
d) Helical capsid
Which virus family includes the virus responsible for yellow fever?
a) Flaviviridae
b) Herpesviridae
c) Retroviridae
d) Picornaviridae
Which virus family includes the virus that causes the common cold and is known for its small size and RNA genome?
a) Picornaviridae
b) Coronaviridae
c) Orthomyxoviridae
d) Herpesviridae
Which virus family is characterized by a double-stranded DNA genome and includes the varicella-zoster virus?
a) Herpesviridae
b) Poxviridae
c) Papillomaviridae
d) Adenoviridae
Which virus family includes the viruses that cause foot-and-mouth disease in animals?
a) Picornaviridae
b) Flaviviridae
c) Paramyxoviridae
d) Herpesviridae
What is the primary classification criterion for viruses in the family Parvoviridae?
a) Single-stranded DNA genome
b) Double-stranded RNA genome
c) Presence of an envelope
d) Icosahedral capsid
Which virus family is characterized by a helical capsid and a single-stranded RNA genome, including the rabies virus?
a) Rhabdoviridae
b) Paramyxoviridae
c) Picornaviridae
d) Retroviridae
Which virus family is known for its segmented RNA genome and includes the rotavirus?
a) Reoviridae
b) Orthomyxoviridae
c) Picornaviridae
d) Coronaviridae
Which virus family includes the viruses responsible for diseases such as rubella and mumps?
a) Paramyxoviridae
b) Flaviviridae
c) Poxviridae
d) Herpesviridae
Which virus family includes the hepatitis B virus and is characterized by its unique double-stranded DNA genome?
a) Hepadnaviridae
b) Flaviviridae
c) Herpesviridae
d) Papillomaviridae
Which virus family includes the viruses that cause common cold and is characterized by its small size and single-stranded RNA genome?
a) Picornaviridae
b) Coronaviridae
c) Paramyxoviridae
d) Herpesviridae
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