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UNIT - I

TRB-2004/05/06

Virology

W.M.

W.M. TRB-

DNA

DNA, RNA

DNA TRB-.

RNA

RNA

RNATMV, TMV

DNA

BSE - RNA or DNA

RNA

”Contagium vivum fluidum”

STUDY MATERIAL AVAILABLE FOR

PGTRB BOTANY 10 UNIT NOTES, PRACTICE QUESTIONS,

PREVIOUS YEAR QUESTION PAPERS.

CONTACT: 9444249503

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http://www.trbtnpsc.com/2013/07/trb-questions-and-study-materials.html

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AIDS - Acquired Immuno Deficiency Syndrome – 1983 -

AIDS- HIV III or ARV II – (TRB 2004)

TNPSC 1998

Tobean TRB 2004

TNPSC-99, TRB-2003, 4

AIDS

Disease Control Quarantine TNPSC 2000.

Nuclear Proteins

Phytophage: CMV RNA Zoophage Bacteriophage T2,T4,T6 Zymophage Mycophage TNPSC 1999 Coliphage TRB 2004

DNA T3 T1 T5 T4 T2 , T4, T6 T- Even Pages T1 , T3, T5 T7 T - Odd Pages



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Lytic Cycles

DNA Transfection. DNA

DNATransfec-tion

TRB 2004,05 Lyso Cycles

Virus

Obligate intracellular

Parasites

Nuclear Proteins

DN

A RNA

RNA (CMV) DNA

DNA

DNA, RNA

RNA Wound Tumour VirusRice Dwarf

VirusRNA



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1

1000

m, n, 1

1000

SatelliteVirusnm

Cucumber Mosaic Virusnm

TMV,nmnm

SphericalHIV Rod shape or clongated) TMV Tadpole shape Brick shape Pox Virus Virion

Poison

W.M.

HIV

RNA Reverse

TranscriptaseRNA HIV(Envelope) T4 AZT

(Virulant)(Lytic cycle)(Temperate) or (Avirulent)



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DNA

T4

TMVCMV

(cold) Measles. Chicken pox. Small pox. Hepatitis. Influenza. Polio (Radbies)(Hydro phobia)

(TRB-2004) (Leukemia) Yellow fever (Severe Acute Respiratory Syndrome) Fift Valley Fever, Lassa fever, Hemorrhagic fever. Mumps. HIV – Human Immuno Deficiency Virus. AIDS – Acquired Immuno Deficiency Syndrom B.




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(Dinner 1971)

RNA

RNA

RNA

RNA

Potato spindle tuber

Citrus exocortis

Chrysanthemum slunt

Tomato bunchytop



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Commensals

Coccus BacillusSpirillum

Pleomorphic



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Chemotaxis

Positive chemotaxis

Negative chemotaxis



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Photo autotrophsChemo chemotaxis

Photolithtrophs

H2S

Photo Onganolithotrophs

ATP



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Chemolithotrophs

2H2S+O2 2S +2H2O

Chemo Organotrophs

Obligate aerobes

Anaerobes



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Facultative Anaerobes

E.Coli

E.Coli



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S

RNA

DNA

DNA

(Sex Pili)

(Binary Fision)

ConjugationTransductionTransformation



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F +

Transduction



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TB




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