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Viruses

About microscopic forms of life, including Bacteria, Archea, protozoans, algae and fungi. Topics relating to viruses, viroids and prions also belong here.

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Postby victor » Sat Jul 15, 2006 8:23 am

I think the virus with the big genome is oftenly gotten in Poxviridae and Herpesviridae family. Genome also determine virus' complexity.
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Postby Sang » Mon Jul 17, 2006 10:48 am

Ah ha, I see! Thanks.
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Postby loveangel » Tue Jul 25, 2006 11:01 am

how could people create viruses???? is the "i love you virus" the most popular virus in the world????
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Postby victor » Tue Jul 25, 2006 11:15 am

if me, I like Influenza virus (family, Orthomyxoviridae) and HIV (family, Retroviridae; genus Lentivirinae)... :lol:
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Postby sunnygirl » Thu Aug 03, 2006 12:18 am

So the outer covering of a virus is a "capsid" but what is the capsid made of?


And, Mumps is a disease caused by a virus that infects the salivary glands, swelling of the glands usuall begins 18 days after contact with the virus. So which of the following is most likely true about the virus which causes mumps?

A) The virus is one which only goes through the lytic cycle

B) The virus is one which goes through both lysogenic cycle and the lytic cycle

C) The virus forms a provirus

D) The virus is a bacteriophage
*AGAPE*
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Postby James » Thu Aug 03, 2006 12:21 am

The capsid is made from various proteins.
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Postby canalon » Thu Aug 03, 2006 1:39 am

Look up the definitions of your four terms (lytic, lysogenic, provirus and bacteriophage) and the answer will be easy.
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Postby Mjhavok » Thu Aug 03, 2006 5:53 am

this would be easy to find on google or wikipedia. I personally don't mind beginners asking these types of questions because anyone wanting to learn is great in my book but wouldn't it be easier to search for rather than waiting on an answer.

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Postby kiekyon » Thu Aug 03, 2006 4:03 pm

loveangel wrote:how could people create viruses????


the latest,
http://www.newscientist.com/article.ns?id=dn2539

the first,
http://news.bbc.co.uk/2/hi/science/nature/2122619.stm
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Postby sunnygirl » Fri Aug 04, 2006 11:26 pm

See I did look up info, and maybe i just missed some of it so ill check it out again
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Postby sunnygirl » Fri Aug 04, 2006 11:28 pm

What are some of the things different betweem viruses and bacteria? i know about two but what are some others
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Postby chicken_boy » Sat Aug 05, 2006 12:51 am

For one thing, they differ greatly in size. The biggest viruses are only as large as the tiniest bacteria.

A typical bacterium has a rigid cell wall and a thin, rubbery cell membrane surrounding the fluid, or cytoplasm inside the cell where as a virus may or may not have an outermost spiky layer called the envelope.

Bacteria contain the genetic blueprint (DNA) and all the tools (ribosomes, proteins, etc.) they need to reproduce themselves.

Viruses are moochers. They contain only a limited genetic blueprint and they don't have the necessary building tools. They have to invade other cells and hijack their cellular machinery to reproduce. Viruses then invade by attaching to a cell and injecting their genes or by being swallowed up by the cell.
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