Today (10-25-11) in clase we handed in our Cancer paper stapled to our rubric. We also truned in the stampsheets and disscussed the lab we did yeterday. We started out the class talkng about What a virus is?

• made of proteins (caspids) and nucleic acid (genetic material): DNA/RNA



• NOT LIVING. Don't use energy, spread to forcing cells to make copies of them, and not cells


• Parasites: take over cells, require a host cell to exsist



• Gene Expression: making of proteins.

Then we talked about viruses reproduced by the lytic cycle or the lysogenic cycle

The picture on the right is a picture of a lytic cycle. As you can see virus first attaches it to the host (cell). Then releases the virus into the cell and attack the bacteria. Then start to make new tail fiber and then bursts out to spread the virus throught the body.

The Picture on the left is a picture of both lytic cycle and lysogenic cycle

The picture here shows us that the virus in the lysogentic cycle is attaching itself to the host's DNA. Then the cell replicates with the viral DNA. Lastly, the DNA exits host and make new viruses.

The homework was to read 20.2 and do correll notes on the chapter.