viruses

Question 1

living charachters of viruses

Answer 1

have own genetic material
reproduce using host machinery
intracellular obligate parasites
destroyed by uv rays

Question 2

non living charachteristics

Answer 2

lack cellular structure
dont have metabolic machinery of their own
can be crystallixzed
inert infectious particle outside the host

Question 3

capsomeres are

Answer 3

protein subunits

Question 4

herpes virus has

Answer 4

162 capsomers

Question 5

adenoviruses has

Answer 5

252 capsomeres

Question 6

viruses range in size from

Answer 6

250nm of pox viruses to 20nm of parvoviruses

Question 7

bacteriophage that infects ecoli

Answer 7

Ttype

Question 8

hydrophobia is caused by

Answer 8

rabies virus

Question 9

viral core contains how many strands of HIV RNA

Answer 9

TWO single STRANDS

Question 10

opportunistics disease

Answer 10

recurrent pneumonia, pulmonary tb , toxoplasmosis

Question 11

hep A

Answer 11

non enveloped RNA

Question 12

hep B

Answer 12

DNA virus enveloped

Question 13

hep C

Answer 13

RNA enveloped virus

Question 14

herpes simplex virus

Answer 14

DNA enveloped

Question 15

influenza virus

Answer 15

RNA virus enveloped

Question 16

polio virus

Answer 16

RNA non envelpoed

Question 17

small pox virus

Answer 17

DNA enveloped

Question 18

incubation period of hep B

Answer 18

30-180 days / 4-20 weeks

Question 19

HIV virus ( reterovirus)

Answer 19

RNA enveloped

Question 20

bacteriophage virus was discovered by twort in ___ and rediscovered by dherelle in ___

Answer 20

1915-1917

Question 21

HIV virus diameter

Answer 21

100nm in diameter