Viruses either double-stranded, either single-stranded DNA or RNA

Viruses are the smallest infective agents,which infect the host cell to be able to divide.They have variety of structuralfeatures and different types of genomes.

 Therefore, I am going to compare influenzavirus and T4 bacteriophage.To begin with, viruses can have eitherdouble-stranded, either single-stranded DNA or RNA genomes. One of the examplesof double-stranded DNA genome is T4 bacteriophage.

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Accordingly, virus uses thehost cell for replicating its DNA in the same way as genome is replicated. Moreover,they have to have DNA polymerase presence and this is why they often causecancer formation because virus forces the host cells to continue dividing. Incomparison,  influenza virus has anegative single-stranded RNA genome, which is complementary to the mRNA and mustcarry within the virus particle an RNA-dependent RNA polymerase. Furthemore, all viruses are a core ofnucleic acid, which is surrounded by a protein coat.

The intact virus particleis called virion. Similarly, T4 bacteriophage and Influenza virus have acapsid- protein coat, which is made up of multiple copies called capsomeres. However,Influenza virus has a helical nucleocapsid, whereas T4 bacteriophage capsid hasa icosahedral symmetry.Moreover, Influenza virus is enveloped, because hasouter membrane and a lipid bilayer around the outside their capsid.

Alsoinfluenza virus has proteins (H5 and N1), which are on the outside of envelopeto allow entrance to the host cells. Comparatively, T4  bacteriophage has a neck, sheat and a baseplate, which can change its conformation when it lands on bacteria.  The structural differences can be seen in thediagrams presented above.In conclusion, influenza virus and T4bacteriophage have numerous differences.

T4 bacteriophage has double-strandedDNA, besides influenza virus has negative single-stranded RNA genome. Inaddition, they distinct in viral symmetry and parts of their structure.