Which of the Following Is Not a Characteristic of Viruses

By Da_Iliana137 09 May, 2022 Post a Comment

A relies on a host-cell metabolism b has a nucleic acid core surrounded by protein c contains only one or a few enzymes d relies on the hosts reproductive capabilities to spread e contains both DNA and RNA. Viruses are not made of cells and they lack many of the cellular organelles found in other living organisms.

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Which of the following is NOT a characteristic of a virus.

. Nonliving characteristics include the fact that they are not cells have no cytoplasm or cellular organelles and carry out no metabolism on their own and therefore must replicate using the host cells metabolic machinery. The cylindrical helical virus type is associated with the tobacco mosaic virus. Instead they must depend on a host cell to synthesize their proteins and to make copies of themselves.

They can only be viewed with an electron microscope e. All living cells whether human animal plant or bacterial have double-stranded DNA dsDNA as their genetic material. Genomes are not necessarily double-stranded either.

Viruses can infect every type of host cell including those of plants animals fungi protists bacteria and archaea. D All of the above. The true nature and appearance of viruses was discovered by.

Bacteria serve many vital roles in nature outside of being infectious. The outside of the cells act like an inert chemicals. They can multiply within host cells.

Nonliving characteristics include the fact that they are not cells have no cytoplasm or cellular organelles and carry out no metabolism on their own and therefore must replicate using the host cells metabolic machinery. Because viruses do not consist of cells they also lack cell membranes cytoplasm ribosomes and other cell organelles. Which of the following is NOT a unique characteristics of Reoviruses compared to other RNA viruses Check all that apply.

For propagation viruses depend on specialized host cells supplying the. Viruses also have a protein coat which protects the DNA or RNA. C They are acellular.

Viruses may be viewed as mobile genetic elements most probably of cellular origin and characterized by a long co-evolution of virus and host. They contain genetic material surrounded by a. O They have two concentric shells O They replicate in the cytoplasm O All of their RNA production occurs with in the viral core structure O They package their RdRp.

They are smaller than prokaryotic cells. They contain ribosomes f. They are composed of genetic material and protein.

They can be crystallized. A Obligate intracellular organisms b do not produce ATP c identifications is based on size shape and type of nucleic acid d contains both DNA and RNA 2. D They are visible with a light microscope.

They can be precipitated. Therefore the encounter of a virion to an appropriate host cell is a random event. All viruses have either DNA or RNA.

Without these structures they are unable to make proteins or even reproduce on their own. However there are some general structural characteristics that all viruses share. They are responsible for many emerging infectious diseases like SARS Ebola COVID-19 b.

They are visible with a light microscope. All viruses have a capsid or head region that contains its genetic material. While both can cause disease viruses are not living organisms whereas bacteria are.

They are obligatory parasites. David Baltimore derived a viral classification scheme one that focuses on the relationship between a viral genome to how it produces its mRNA. They cannot be classified into a domain c.

Living characteristics of viruses include the ability to reproduce but only in living host cells and the ability to mutate. Which of the following is NOT a characteristic of a virus. Which of the following is NOT a characteristic of viruses.

The attachment itself is highly specific between molecules on the outside of the virus and receptors on the host cell surface. Viruses on the other hand have genomes or genetic material that can be composed of DNA or RNA but not both. Without these structures they are unable to make proteins or even reproduce on their own.

They are visible with a light microscope. Which is NOT a characteristic of viruses. Which of the following statements are true about the capsomeres.

All of the above are characteristics. The capsid is made of proteins and glycoproteins. 20 Which of the following is NOT a characteristic of viruses.

Up to 24 cash back Viruses form an unique bridge between living and non-living things with those characteristics. Viruses are small obligate intracellular parasites which by definition contain either a RNA or DNA genome surrounded by a protective virus-coded protein coat. Envelope viruses such as influenza and HIV come covered in a protective lipid envelope.

They are not made up of cells d. This is called the host range. Because most viruses are extremely well adapted to their host organism virus structure varies greatly.

B They are obligatory parasites. BIOL 101 -- Quiz 7 -- Virology. They dont show growdevelopment nutrition reproduction etc.

Living characteristics of viruses include the ability to reproduce but only in living host cells and the ability to mutate. Most viruses will only be able to infect the cells of one or a few species of organism. B It is a viral protein for replication.

All are very host specific. The viruses within these categories share similar characteristics. Most animal viruses are classified as icosahedral and are nearly spherical in shape.

Because viruses do not consist of cells they also lack cell membranes cytoplasm ribosomes and other cell organelles. Since viruses lack ribosomes and thus rRNA they cannot be classified within the Three Domain Classification scheme with cellular organisms. A It is an individual unit of the capsid.

E They are smaller than prokaryotic cells. Viruses have the following characteristics. Different virus types can also have single-stranded DNA ssDNA.

Outside of their host cell viruses are inert or metabolically inactive. Which of the following is not a characteristic of a virus. Viruses cannot multiply outside a host cell.

A Charles chamberland using the. Viruses are unable to create their own energy. Viruses are only active within host cells which they need to reproduce while bacteria are single-celled organisms that produce their own energy and can reproduce on their own.

All types of cells can be infected by viruses. All are strict intracellular parasites. However having a wide host range is not common and viruses will typically only infect specific hosts and.

A They are composed of genetic material and protein. Instead they must depend on a host cell to synthesize their proteins and to make copies of themselves. C It is a unit of nucleic acid in viruses.

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