Lecture 1

Question 1

What is the history of viruses called

Answer 1

Virology

Question 2

What is the disease that mummies had

Answer 2

small pox

Question 3

When did virology become a science and what caused this

Answer 3

The late 1800s and what caused this was infectious TMV, which was isolated from filtered, bacteria free fluid

Question 4

What is a unfilterable particle

Answer 4

A virus

Question 5

Who discovered that yellow fever was caused by mosquito transmission in 1901

Answer 5

Walter Reed

Question 6

Using what kind of microscope are viruses seen

Answer 6

Electron microscopes. They cannot be seen under regular light microscopes

Question 7

Viruses are what type of parasite

Answer 7

intracellular obligate

Question 8

Range of virus size

Answer 8

10 - 100 nm

Question 9

Viruses are only viewable under what kind of microscope

Answer 9

Electron

Question 10

What is the average length of a viral genome

Answer 10

couple thousand - 200,000 nucleotides long

Question 11

How many nucleotides long is the HIV genome

Answer 11

9200

Question 12

How many genes does HIV have

Answer 12

9

Question 13

How many nucleotides does E. coli have

Answer 13

5 million

Question 14

How many genes in E coli

Answer 14

5000 Genes

Question 15

How many genes do humans have

Answer 15

20,000

Question 16

How many nucleotides are in our genome?

Answer 16

Billions!

Question 17

What is the approx formula for figuring out how many bases or nucleotides is in a bacteria or virus

Answer 17

genes x 1000 = # nucleotides

Question 18

Why does that formula not work for eukaryotes?

Answer 18

Eukaryotes (including humans) have many more bases they do genes because a good proportion of our genome is introns! Bacteria and viruses don’t really have introns, almost all their genome codes for something.