The Tzanck smear stains for the presence of multinucleated giant cells that are formed as a result of fusion of cell membranes due to insertion of viral proteins into the membrane. Tzanck smear does not detect the presence of inclusion bodies, dead cells, herpes DNA, or cell envelope.

Adenoviruses are non-enveloped viruses with an icosahedral nucleocapsid. The capsid contains 12 pentons at each vertices with 12 fibers projecting from the vertices. The genome is a linear double stranded DNA with terminal protein. Viral attachment proteins are present in the fibers projecting from the vertices of the virions.

The additional characteristics of adenovirus include the following:

• The virions replicate in the nucleus
• Encode proteins to promote mRNA and DNA synthesis, including its own DNA polymerase
• Infects epithelial cells lining respiratory and enteric organs
• Virus can become latent in lymphoid tissue and can be reactivated by immunosuppression or infection with other agents
• Forms basophilic intranuclear inclusions within an infected epithelial cell

Last, they are commonly associated with respiratory diseases, adenoviral pneumonia, epidemic keratoconjunctivitis, and pharyngoconjunctival fever.

The question requires the knowledge that Escherichia coli is a facultative, Gram negative, lactose fermenting bacteria. EMB (eosin methylene blue), or Mac (MacConkey) media is superior for isolating Escherichia coli because it is both selective and differential. Nutrient agar is neither selective nor differential. Selenium enriched media would not help identify this bacteria because Escherichia coli does not require this supplemented media to grow. Phenethyl alcohol can be used to select for anaerobic bacteria, which is of no utility in this situation.

The Tzanck smear stains for the presence of multinucleated giant cells that are formed as a result of fusion of cell membranes due to insertion of viral proteins into the membrane. Tzanck smear does not detect the presence of inclusion bodies, dead cells, herpes DNA, or cell envelope.

Adenoviruses are non-enveloped viruses with an icosahedral nucleocapsid. The capsid contains 12 pentons at each vertices with 12 fibers projecting from the vertices. The genome is a linear double stranded DNA with terminal protein. Viral attachment proteins are present in the fibers projecting from the vertices of the virions.

The additional characteristics of adenovirus include the following:

• The virions replicate in the nucleus
• Encode proteins to promote mRNA and DNA synthesis, including its own DNA polymerase
• Infects epithelial cells lining respiratory and enteric organs
• Virus can become latent in lymphoid tissue and can be reactivated by immunosuppression or infection with other agents
• Forms basophilic intranuclear inclusions within an infected epithelial cell

Last, they are commonly associated with respiratory diseases, adenoviral pneumonia, epidemic keratoconjunctivitis, and pharyngoconjunctival fever.

The question requires the knowledge that Escherichia coli is a facultative, Gram negative, lactose fermenting bacteria. EMB (eosin methylene blue), or Mac (MacConkey) media is superior for isolating Escherichia coli because it is both selective and differential. Nutrient agar is neither selective nor differential. Selenium enriched media would not help identify this bacteria because Escherichia coli does not require this supplemented media to grow. Phenethyl alcohol can be used to select for anaerobic bacteria, which is of no utility in this situation.

The Tzanck smear stains for the presence of multinucleated giant cells that are formed as a result of fusion of cell membranes due to insertion of viral proteins into the membrane. Tzanck smear does not detect the presence of inclusion bodies, dead cells, herpes DNA, or cell envelope.

Adenoviruses are non-enveloped viruses with an icosahedral nucleocapsid. The capsid contains 12 pentons at each vertices with 12 fibers projecting from the vertices. The genome is a linear double stranded DNA with terminal protein. Viral attachment proteins are present in the fibers projecting from the vertices of the virions.

The additional characteristics of adenovirus include the following:

• The virions replicate in the nucleus
• Encode proteins to promote mRNA and DNA synthesis, including its own DNA polymerase
• Infects epithelial cells lining respiratory and enteric organs
• Virus can become latent in lymphoid tissue and can be reactivated by immunosuppression or infection with other agents
• Forms basophilic intranuclear inclusions within an infected epithelial cell

Last, they are commonly associated with respiratory diseases, adenoviral pneumonia, epidemic keratoconjunctivitis, and pharyngoconjunctival fever.

The question requires the knowledge that Escherichia coli is a facultative, Gram negative, lactose fermenting bacteria. EMB (eosin methylene blue), or Mac (MacConkey) media is superior for isolating Escherichia coli because it is both selective and differential. Nutrient agar is neither selective nor differential. Selenium enriched media would not help identify this bacteria because Escherichia coli does not require this supplemented media to grow. Phenethyl alcohol can be used to select for anaerobic bacteria, which is of no utility in this situation.

Rickettsia, chlamydia, prions, and viroids can be distinguished from viruses, but not by just one of the mentioned criteria. While all of these groups are obligate intracellular organisms, only the viruses are parasites with an absolute intracellular requirement, which also depend on the machinery of the host cell for replication. Prions are small infectious protein particles. Viroids are subviral infectious nucleic acids, which lack even the protein capsid found in viruses. Viruses may contain a genome of DNA or RNA, so the presence of an RNA genome is indicative of a virus, but the presence of a DNA genome is not.