Biological Classification

Question 1

The study of viruses

Answer 1

Virology

Question 2

Viruses are connecting link between

Answer 2

Living and non living things

Question 3

Viruses can only reproduce by

Answer 3

Only within a living cell

Question 4

Viruses can be killed by

Answer 4

Autoclaving and ultraviolet rays

Question 5

Meaning of virus

Answer 5

Venom or poisonous fluid

Question 6

D.J. Ivanowsky found virus by seeing microbes in the disease__________?

Answer 6

Disease- mosaic disease of tobacco.

Question 7

M. W. Beijernick1898 called the extraction of the infected plant of tobacco as_____________

Answer 7

Contagium vivum fluidum

infectious living fluid

Question 8

Who crystallised TMV ( tobacco mosaic virus) for the first time…….

Answer 8

W. M. Stanley 1935

Question 9

The outter most envelop of virus is made of

Answer 9

Proteins -from virus
Lipids}. Carbohydrates}
Both from the host

Question 10

Envelope is present in which all viruses

Answer 10

HIV,Herpes virus…..

Question 11

An inert virus is called

Answer 11

Viron

Question 12

The protein coat is made of subunits called as

Answer 12

Capsomeres

Question 13

Viruses have which type of nuclei acid

Answer 13

It contains both RNA and DNA

Question 14

DNA containing viruses are called

Answer 14

Deoxyviruses

Question 15

Double stranded DNA is found in

Answer 15

Pox virus ,cauliflower mosaic virus,herpes virus..

Question 16

Single stranded DNAare present in

Answer 16

Colliphage X 174, M13 phage…

Question 17

Double stranded RNA IS PRESENT IN

Answer 17

Reovirus, wound tumour virus..

Question 18

Single stranded RNA IS PRESENT IN

Answer 18

TMV, Influenza virus, foot and mouth disease virus,retrovirus(HIV)…

Question 19

The genetic material found in phytophagineae/plant viruses

Answer 19

ssRNA

Question 20

Genetic material in zoophagineae /animal virus

Answer 20

ss or dsRNA OR dsDNA

Question 21

How many capsomeres are arranged helically to form a capsid

Answer 21

2130

Question 22

Which is the monomer of RNA

Answer 22

Nucleotides

Question 23

ssRNA consists of _________ nucleotides.

Answer 23

6400

Question 24

The ratio of nucleotides : capsomeres =

Answer 24

3:1

Question 25

The two types of reproduction in viruses are

Answer 25

Lytic cycle

Lysogenic cycle

Question 26

Virulent virus reproduce by

Answer 26

Lytic cycle

Question 27

Temperate viruses reproduce by

Answer 27

Lysogenic cycle

Question 28

Casual agent causing AIDS

Answer 28

Retrovirus

Question 29

Causal agent causing mumps

Answer 29

Paramyxovirus

Question 30

The term virus was coined by

Answer 30

Pasteur 1880

Question 31

Viroids was discovered by

Answer 31

Dieter 1971

Question 32

Viroids are with which type of genetic material

Answer 32

Infectious RNA. Particle

Question 33

The diseases caused by viroids in plants are

Answer 33

Potato spindle tuber disease,chrysanthemum stunt and citrus exocortis..

Question 34

Virusoids were discovered by

Answer 34

Randle

Question 35

Virusoids are present in

Answer 35

Inside the capsid of the other large virus

Question 36

Prions are discovered by

Answer 36

Alper et.al

Question 37

Proms causes diseases like

Answer 37

Kuru disease
Bovine spongiform encephalopathy
Scrapie disease in sheep
Creutz feldt Jakob disease