What is the end result of crossing-over during the first stage of meiosis? the chromatids contain the maternal DNA only
the paternal DNA only is copied onto the chromatids
the chromatids become non-sister (non-identical) chromatids
the chromatids are identical to each other

No 1 very mooch

When a virus infects a host cell, it uses the cell's machinery to make copies of its own genetic material in a process called replication. finally, during the process of self-assembly, that protein shell and the copies of the virus's genetic material are assembled into new viruses.