In the viral multiplication cycle, capsids and genetic material are packaged into virions during the step. Please give the specific term for this step.

The specific term for the step in the viral multiplication cycle where capsids and genetic material are packaged into virions is known as "assembly."

During the assembly stage, viral components such as the capsid proteins and nucleic acids come together to form new virions. This process typically occurs after the virus has replicated its genetic material and produced viral proteins in the host cell. The capsid, which is the protective outer shell of the virus, encapsulates the viral genome, ensuring that the viral particles are intact and capable of infecting other cells.

After assembly, the mature virions are then released from the host cell, often by a process known as budding or lysis, allowing them to infect new cells and continue the viral replication cycle. Understanding this step is crucial for research into viral infections and the development of antiviral therapies.