Sribe for 11/10/11

Even though the class period was about 40 minutes long, we covered a lot of stuff in class.

HOMEWORK:
-Read and Understand UP 11-14 (lab)

-UP 7-8

-Make magazine article or tribune (Due: 11/21)

CLASS ACTIVITY:

We went to our lab groups to discuss the following terms: DNA, Protein, Gene, Nitrogen Base, Phosphate, Nucichleotide, Structure. We took this words and explained them by writing up a paragraph to define all of them. All the groups presented their paragraph in class and were judged by mrs. Stein on how well they were defined in the paragraph. Then when comparing everyones performance, she found the word gene, as she expected to be the one that everyone didn't do so well on. This brings us to the question:

What the definition of a Gene?

INCORRECT ANSWER: "things that make up who we are"
CORRECT: Segment (unit) of DNA which codes for proteins...these proteins determine our traits.

CLASS NOTES:

DNA- deoxribonucleic acid

SLIDES

DNA STRUCTURE AND COMPONENTS

*Double Helix- 2 strands form a twisted ladder
*Subunits of nucleotides contain:
- Sugar
- Phosphate group
- Nitrogen group
*Backbone ("uprights") made of deoxyribose and phosphate

NITROGEN BASES

*Purines- 2 rings
- Adenine
- Guanine
*Pyrimidines- 1 ring
-Thymine
-Cytosine
*Order of the bases contains the "code"to make proteins