INBDE (Integrated National Board Dental Examination) Practice Exam 2025 - Free Practice Questions and Study Guide

Question: 1 / 1180

HIV is a ___ virus and HCV is a ____ virus.

retrovirus, flavivirus

HIV is classified as a retrovirus because it belongs to a family of viruses called Retroviridae, which are characterized by their ability to reverse transcribe their genetic material from RNA into DNA. On the other hand, HCV is classified as a flavivirus because it belongs to a family of viruses called Flaviviridae, which are characterized by their small, single-stranded RNA genome and their ability to cause a wide range of diseases in humans and animals. The other options, C and D, are incorrect because HIV and HCV do not belong to the family of picornaviruses or hepadnaviruses, respectively. These families are characterized by distinct genetic and structural features that differ from retroviruses and flaviviruses.

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flavivirus, retrovirus

retrovirus, picornavirus

hepadnavirus, flavivirus

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