acellular life Flashcards by maryam tqq

Q

virus is a _ lang word

A

latin

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Q

who crystallized virus?

A

stanely

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Q

agent of TMV discovered by

A

Ivanowky

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Q

how many plant disease knwn

A

more than 2000 types

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Q

Most plant virus have genome?

A

RNA

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Q

most plant virus have shape?

A

helical (rod) and polyehdral

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Q

warts caused by?

A

papovirus

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Q

small pox caused by?

A

poxivirus

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Q

Polio, hepatitis A caused by?

A

picornovirus

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Q

measles mumps caused by

A

paramyxovirus

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Q

rod shaped virus?

A

TMV

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Q

polyhedral capsid with glycoprotein spike virus?

A

Adenovirus

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Q

dsDNA virus

A

smallpox virus

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Q

ssDNA virus

A

parvovirus mild rash also bacteriophage

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Q

dsRNA

A

diarrhea virus

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Q

ssRNA

A

rubella

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Q

ssRNA–>mRNA

A

flu

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Q

ssRNA—> DNA

A

HIV

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Q

dsDNA circular

A

Hept B

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Q

a complete viral particle is called

A

viron

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Q

Core is composed of?

A

Protein (enzyme) + Genome (dna/ rna)

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Q

Which enzyme converts ssRNA to dsRNA

A

Transcriptase

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Q

which enzyme converts ssRNA –> ds DNA

A

Reverse transcriptase

Q

Reverse transcriptase is present in>?

A

Retrovirus + Hept b

Coat consists of?

Capsid + envelope

Capsid is composed of?

Capsomere subunits

capsomere units of Herpes?

162

Capsomere units of Adenovirus?

252

Capsomere units of Polio?

32

20 triangle capsomere is called

icosahedral

envelope of virus made up of?

lipoprotein

is envelope found in all virus

no

bacteriophage genome is?

ssDNA

how many tail fibers present in bacteriophage?

6

enzyme at tail of bacteriophage?

Lysozyme

function of lysozyme

digest host cell wall

flu virus env or non env

enveloped

outter part of HIV spike made up of which glycoprotein?

gp-120

inner part of HIV spike made up of which glycoprotein?

gp-41

which gp of HIV used for attachment w host?

gp-120

which gp of HIV used for cell fusion?

gp-41

How many strands of RNA in core of HIV?

2

How many genes in HIV RNA?

9

Enzymes present in HIV core?

Rverse transcripate, protease, integrase

Hep A is called

Infectious hepatitis

HAV transmitted thru?

fecal oral route

HBV is called?

Serum hepatitis

?Treatment of HBV

Alpha interferon

HCV transmitted via?

Blood only

The only human disease caused by virioid?

Hep D

HSV 1 causes

Oral herpes

HSV 2 causes

Genital herpes

Genome in prions?

none

Mad cow disease caused by?

Prions

Kuru disease caused by?

prions

Genome of Viroid?

ssRNA