Chapter 6: Viruses

Question 0

March of dimes was established by

Answer 0

Fdr

Question 1

What kinds of life forms can be detected by viruses?

Answer 1

All of them

Question 2

Most frequent infections of college students:

Answer 2

1. Rhinovirus
2. Epstein-barr (mono)
3. Sexually transmitted viruses

Question 3

Host range

Answer 3

The group of hosts a particular virus can infect

Question 4

Small viruses can have _____ genes while some large viruses can have _____ ______.

Answer 4

10; over 1000

Question 5

Rna molecules that infect plants

Answer 5

Viriods

Question 6

Viriods have no

Answer 6

Protein capsid

Question 7

Composed of repeated protein subunits

Answer 7

Viral capsid

Question 8

Symmetrical viruses

Answer 8

1. Icosahedral

2. Filamentous

Question 9

Icosahedral viruses

Answer 9

Polyhedral with 20 identical triangular faces. exhibits rotational symmetry

Question 10

A long tube of protein with the genome coiled inside

Answer 10

Filamentous viruses

Question 11

In some ________ viruses, the capsid is enclosed in a ________.

Answer 11

Icosahedral: envelope

Question 12

T4 bacteriophages are

Answer 12

Asymmetrical viruses

Question 13

Viral genomes include:

Answer 13

1. capsid
2. Envelope proteins (if need be)
3. Polymerase not found in host cell

Question 14

ICTV

Answer 14

International committee on taxonomy of viruses

Question 15

Ictv criteria (5):

Answer 15

1. Genome comp
2. Capside symm
3. Envelope
4. Size of virion
5. Host range

Question 16

Baltimore classification

Answer 16

1. Genome comp

2. Route used to express rna

Question 17

7 types of viruses

Answer 17

Group i: ds dna 
II: ss dna
III: ds rna 
IV: (+) ss rna (mrna)
V: (-) ss rna (complement)
VI: rna retro
VII: pararetro