Final answer:
The coronavirus has a linear RNA genome surrounded by a helical capsid. The Beta strain is the most chronic and lethal strain of the coronavirus.
Step-by-step explanation:
The coronavirus and its related family members have a specific structural composition. They have a linear, RNA genome surrounded by a helical capsid. The capsid is made up of protein subunits that give the virus its shape.
The coronavirus family includes several strains, such as the Alpha strain, Beta strain, Gamma strain, and Delta strain. Among these, the most chronic and lethal strain is the Beta strain. This strain has been associated with severe respiratory illnesses, including the Middle East respiratory syndrome (MERS) and severe acute respiratory syndrome (SARS).