Answer:
Option A, Rabies virus
Explanation:
Complete Question
A scientist discovers a new virus with a linear, RNA genome surrounded by a helical capsid. The virus is most likely a member of which family based on structure classification?
1. Rabies virus
2. Herpesviruses
3. Retroviruses
4. Influenza viruses
Solutions -
Genetic material can be linear or circular. It is linear and single stranded in viruses such as rabies, smallpox, retroviruses etc. Rabies virus has enveloped helical capsid. Retrovirus though have a linear RNA but possess a hexagonal capsid with 12 pentamers enclosed with in a shell. Genome structure in influenza virus is segmented and herpes virus is a DNA virus.
Hence, option A is correct
