tailed bacteriophages fall within which of baltimore groups
Caudovirales The Caudovirales are an order of viruses also known as the tailed bacteriophages (cauda is Latin for "tail").[1] 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.[2] 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.[2] 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.[2]
Mycobacterium leprae Mycobacterium leprae, also known as Hansenâ€™s bacillus spirilly, mostly found in warm tropical countries, is a bacterium that causes leprosy (Hansen's disease).[1] It is an intracellular, pleomorphic, acid-fast, pathogenic bacterium.[2] M. leprae is an aerobic bacillus (rod-shaped) surrounded by the characteristic waxy coating unique to mycobacteria. In size and shape, it closely resembles Mycobacterium tuberculosis. Due to its thick waxy coating, M. leprae stains with a carbol fuchsin rather than with the traditional Gram stain. The culture takes several weeks to mature.