Interested to Buy Any Domain ? << Click Here >> for more details...
What is Viruses explain it ?
- 2 Answers
- 4441 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / guest
These are so minute to be seen with light microscope. They
can be studied only with the help of electronic microscope.
Many human diseases e/g/ small fox, poliomyclitis, mumips,
yellow fever influenza, measles are all due to virus
infection. Certain diseases of plants characterised by
mottling, rolling, and wrinkling of leaves. These are also
caused by viruses.
In 1955 Santley succeeded in obtaining the tobacco mosaic
virus in the form of definite crystals. The particle of
virus show a good range in shape. They may be hexagonal,
spherical or rod like. These is just a core of nucleic acid
surrounded by a sheath of protein. Nucleus, cell membrane
and cytoplasm are absent.. These viruses are not free
living. These viruses grow in cells of living being. Viruses
possess some chief characteristics which place them in
loving being such as property of Reproduction viruses can
mutate also. Outside the body of loving begin it is dead
live a stone. It neither respires or reproduces. It
reproduces in large number inside the cells living beings.
Crystals of viruses can be stored in bottles just like salt
or sugar, So we can say that these viruses form a link
between the loving and non-living
Viruses mostly spread by contact. Insects, betles, leaf
hoppers transfer them from diseased to healthy plant. Virus
diseases of plants can be controlled by
a) Reducing the insect vectors.
b) By sowing diseases free seeds.
c) By using varieties of plants resistant to a particular virus.
The virus caused influenza and cold. This is also spread by
contact, coughing or spitting. Polio virus is transmitted by
way of infected faeces files also acts as a carrier of these
diseases. Some of human diseases which are caused by viruses
can be cured by vaccination. Vaccination is injecting of a
weaknened virus in the body which causes the formation of
antibodies that counteract the virus make the individual immune.
| Is This Answer Correct ? | 2 Yes | 1 No |
viruses are the intracellular parasites that can not able
to replicate themselves without a host. They use host
enzymes to multiply its own nucleic acid.
| Is This Answer Correct ? | 1 Yes | 1 No |
what is the branch of botany that deals with study of economically important plants?
Why are leaves green?
What plants do viticulturalists grow?
why are banana stems curved?
in the classification of organisms, four of the 5 kingdoms are animalia, plantae, fungi, and protista. What is the fifth?
How do detergents affect the plant growth?
Why do organisms live in certain places?
What are the effects of different temperatures on plants?
What is considered a fruit?
What are the symptoms of late blight of potato
How do you measure the content of vitamins or iron in a plant ?
give two examples of plants in which you can find free central placentation?
4 Answers College School Exams Tests, Pondichery University, University Exams,
Micro Biology 
