There is a hypothesis that viruses are alive because they have genetic material inside them, however there are scientists who disagree because viruses need a host cell to replicate their genetic material. Viruses have internal DNA or RNA surrounded by a structure called capsid.
Because they fully depend on the metabolism of a cell for replication, they are considered non-living.
Karyotyping is <u>a test to examine chromosomes in a sample of cells</u>. This test can help identify genetic problems as the cause of a disorder or disease.
