acellular life Flashcards by maryam tqq | Brainscape

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

Q

Coat consists of?

A

Capsid + envelope

Q

Capsid is composed of?

A

Capsomere subunits

Q

capsomere units of Herpes?

A

162

Q

Capsomere units of Adenovirus?

A

252

Q

Capsomere units of Polio?

A

32

Q

20 triangle capsomere is called

A

icosahedral

Q

envelope of virus made up of?

A

lipoprotein

Q

is envelope found in all virus

A

no

Q

bacteriophage genome is?

A

ssDNA

Q

how many tail fibers present in bacteriophage?

A

6

Q

enzyme at tail of bacteriophage?

A

Lysozyme

Q

function of lysozyme

A

digest host cell wall

Q

flu virus env or non env

A

enveloped

Q

outter part of HIV spike made up of which glycoprotein?

A

gp-120

Q

inner part of HIV spike made up of which glycoprotein?

A

gp-41

Q

which gp of HIV used for attachment w host?

A

gp-120

Q

which gp of HIV used for cell fusion?

A

gp-41

Q

How many strands of RNA in core of HIV?

A

2

Q

How many genes in HIV RNA?

A

9

Q

Enzymes present in HIV core?

A

Rverse transcripate, protease, integrase

Q

Hep A is called

A

Infectious hepatitis

Q

HAV transmitted thru?

A

fecal oral route

Q

HBV is called?

A

Serum hepatitis

Q

?Treatment of HBV

A

Alpha interferon

Q

HCV transmitted via?

A

Blood only

Q

The only human disease caused by virioid?

A

Hep D

Q

HSV 1 causes

A

Oral herpes

Q

HSV 2 causes

A

Genital herpes

Q

Genome in prions?

A

none

Q

Mad cow disease caused by?

A

Prions

Q

Kuru disease caused by?

A

prions

Q

Genome of Viroid?

A

ssRNA