Science Class This Week

In science class this week, we did a lot of things. We watched a movie on how the structure of double helix was found and how scientists found out the names of the bases that made up the double helix. This is a picture of the double helix labled.[left]To the right is a picture of the double helix and its parts.

In that movie, we also learnet that the DNA sends out a strand of messenger RNA[DNA, with only one strand] to the proteins and

commands them what to do.

We also learnt that you can interfear with someone's DNA, by sending a new RNA into the cell, and dthat re-instructs the cell do do what the RNA says.

Later in te week, we took a look at the DNA test results of the suspects in the class.After we compared all the DNA result, Mary had the same exact DNA sample as the hair that Mr. Finley found.

The next day we read our science text books and the book was about the cell cycle. All cells start from an existing cell. All cells could reproduce new cell and every new cell contins the origional DNA from the origional cell.

That is mainly what we learnt over the week.