Viruses

Question 0

Virus particle

Answer 0

Virion

Question 1

Characteristics - 3

Answer 1

No own ribosomes
No permanent membrane
Host needed for protein synthesis

Question 2

Virus protein coat

Answer 2

Capsid

Question 3

Virus+host

Answer 3

Virus replication factory

Question 4

Classification - 7 groups

Answer 4

Baltimore
Double/single DNA
Double RNA
Pos/neg RNA
RNA as DNA (retroviruses)
DNA as RNA (hepatitis)

Question 5

Viral shape

Answer 5

Made of capsomeres

Helical or icosahedral

Question 6

Membranes

Answer 6

Enveloped- released by budding
Non-enveloped - released by lysis
Both have embedded proteins

Question 7

Special adaptations - 2

Answer 7

Syringe-like tail - bacteriophags

Movement proteins - plant viruses

Question 8

Life cycle

Answer 8

Binding - early genes expressed - genome replication - late genes expressed - capsid synthesis - capsomeres assembly - bursting/budding

Question 9

Viral diseases - 15

Answer 9

Hepatitis c
Polio
Herpes
Chickenpox/shingles
Kaposis sarcoma
Epstein-Barr
Smallpox
Cowpox
Influenza
Measles
Mumps
Ebola
Rubella
Dengue
Yellow fever

Question 10

Why influenza mutates

Answer 10

8 different pieces of genome

Two different strains inside 1 organism can recombine

Question 11

Origins hypotheses

Answer 11

Descendants of bacteria (mimiviruses)
Separate evolution
Escaped cellular components