Lecture 1 Flashcards
What is the history of viruses called
Virology
What is the disease that mummies had
small pox
When did virology become a science and what caused this
The late 1800s and what caused this was infectious TMV, which was isolated from filtered, bacteria free fluid
What is a unfilterable particle
A virus
Who discovered that yellow fever was caused by mosquito transmission in 1901
Walter Reed
Using what kind of microscope are viruses seen
Electron microscopes. They cannot be seen under regular light microscopes
Viruses are what type of parasite
intracellular obligate
Range of virus size
10 - 100 nm
Viruses are only viewable under what kind of microscope
Electron
What is the average length of a viral genome
couple thousand - 200,000 nucleotides long
How many nucleotides long is the HIV genome
9200
How many genes does HIV have
9
How many nucleotides does E. coli have
5 million
How many genes in E coli
5000 Genes
How many genes do humans have
20,000
How many nucleotides are in our genome?
Billions!
What is the approx formula for figuring out how many bases or nucleotides is in a bacteria or virus
genes x 1000 = # nucleotides
Why does that formula not work for eukaryotes?
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.
