Paradox of biodiversity consists of all types of plants and animals in which I tell you about difference interesting facts about living forms that exist in the world. Also that knowledge is useful for you .




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Friday, March 15, 2019

Would you call viruses living or non living?

    Would you consider viruses living or no living?

Viruses are non- cellular organisms that are characterized by having an inert crystalline structure outside living cell.
Once they infect a cell they take over the machinery of the host cell to replicate themselves , killing the host body.

* The name virus means venom or poisonous fluid which was given by Pasteur d.j.ivanowsky (1892).
* Viruses contain genetic material , that could be either DNA or RNA . A virus contain both RNA or DNA.

* Virus that infect plants have single stranded RNA and viruses that infect animals have double stranded DNA. Bacterial viruses or bacteriophages ( viruses that infect bacteria) are usually double stranded DNA viruses.
* The protein coat made up of capsid of small units called capsomeres , protects nucleic acid.
* Viruses causes disease like mumps , small pox , influenza. AIDS in humans also caused by a virus .
* In plants , the symptoms can be mosaic formation , leaf rolling and curling , yellowing and vein clearing , drafting and stunted growth.

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