<P> The Caudovirales are an order of viruses also known as the tailed bacteriophages ( cauda is Latin for `` tail '' ) . Under the Baltimore classification scheme , the Caudovirales are group I viruses as they have double stranded DNA ( dsDNA ) genomes , which can be anywhere from 18,000 base pairs to 500,000 base pairs in length . The virus particles have a distinct shape ; each virion has an icosahedral head that contains the viral genome , and is attached to a flexible tail by a connector protein . The order encompasses a wide range of viruses , many of which containing genes of similar nucleotide sequence and function . Some tailed bacteriophage genomes can vary quite significantly in nucleotide sequence , however , even among the same genus . Due to their characteristic structure and possession of potentially homologous genes , it is believed these bacteriophages possess a common origin . </P>
<P> The Caudovirales are an order of viruses also known as the tailed bacteriophages ( cauda is Latin for `` tail '' ) . Under the Baltimore classification scheme , the Caudovirales are group I viruses as they have double stranded DNA ( dsDNA ) genomes , which can be anywhere from 18,000 base pairs to 500,000 base pairs in length . The virus particles have a distinct shape ; each virion has an icosahedral head that contains the viral genome , and is attached to a flexible tail by a connector protein . The order encompasses a wide range of viruses , many of which containing genes of similar nucleotide sequence and function . Some tailed bacteriophage genomes can vary quite significantly in nucleotide sequence , however , even among the same genus . Due to their characteristic structure and possession of potentially homologous genes , it is believed these bacteriophages possess a common origin . </P>
tailed bacteriophages fall within which of baltimore groups
tailed bacteriophages fall within which of baltimore groups
group I
group I