Alljobsbd Forum
September 03, 2010, 12:24:46 PM *
Welcome, Guest. Please login or register.
Did you miss your activation email?

Login with username, password and session length
News: All Jobs Forum is dedicated to career talk.
 
   Home   Help Search Login Register  

Del.icio.us Digg FURL FaceBook Stumble Upon Reddit SlashDot Ask BlinkBits BlinkList Co.mments Delirious Feed Me Links Google Bookmarks Linkagogo Ma.gnolia MSN Live Netscape Netvouz Newsvine RawSugar Rojo Smarking Socializer Sphinn Spurl Squidoo Tailrank Technorati Yahoo My Web

Pages: [1]   Go Down
  Print  
Author Topic: Various Kind of Human disease Virus  (Read 396 times)
0 Members and 1 Guest are viewing this topic.
dustu
Newbie
*

Reputation: +0/-0
Offline Offline

Gender: Male
Posts: 3


WWW
« on: June 12, 2009, 01:31:35 AM »

A virus (from the Latin virus meaning toxin or poison) is a sub-microscopic infectious agent that is unable to grow or reproduce outside a host cell. Viruses infect all cellular life. The first known virus, tobacco mosaic virus, was discovered by Martinus Beijerinck in 1898,[1] and now more than 5,000 types of virus have been described.[2] The study of viruses is known as virology, and is a branch of microbiology.

Viruses consist of two or three parts: all viruses have genes made from either DNA or RNA, long molecules that carry genetic information; all have a protein coat that protects these genes; and some have an envelope of fat that surrounds them when they are outside a cell. Viruses vary in shape from simple helical and icosahedral shapes, to more complex structures. They are about 1/100th the size of bacteri
Logged

Pages: [1]   Go Up
  Print  

 
Jump to:  

Powered by MySQL Powered by PHP Copyright © forum.alljobsbd.com; All Rights Reserved
Powered by SMF | SMF © 2006-2009, Simple Machines LLC | Sitemap
Valid XHTML 1.0! Valid CSS!
Page created in 0.245 seconds with 23 queries. (
Pretty URLs adds 0.082s, 3q)

Google visited last this page August 30, 2010, 01:09:46 AM