Class 9/15

Today at the beginning of class we handed in UP 7-14. Then, we had a reading check on the reading from last night, which was 12.3. After the reading check we took some notes. Below are the notes we took today.

DNA & CHROMOSOMES: LARGEST- Chromosome (46)

Gene: segment of DNA which codes for protein.

Double Helix

SMALLEST- nucleotides (sugar-dexoyribose, phosphate, nitrogen bases)

DNA REPLICATION:

~During S-phase of interphase

-2 copies needed for mitosis

~Each strand serves as a template for the new strand

~produces 2 identical DNA molecules

~semi-conservative replication: each new molecule contains one old strand and one new

Here are some links to help with these notes:

http://www.fed.cuhk.edu.hk/~biology/teaching/genetics/animations/transcription.htm

http://www.susanahalpine.com/anim/Grolier_Anims/DNA.htm

Homework:

1. Read 13.1-Double Bubble Map: DNA vs. RNA- due tomorrow (11/16)

2. Read 13.1 and 13.2- Flow Map: "Protein Synthesis"- due Thursday

3. Tribune Article- due Monday

4. Unit Test- Tuesday

The next scribe will be GABBY

Class 9/15

Scribe 11/14

At the start of class today our UP pages 7 and 8 were checked. They will be turned in tomorrow along with pages 9-14. Tonight you will also read 12.3 in the textbook. Due on monday is the Tribune article and tuesday will be our unit test.

Today in class we did a lab that can be found on UP pages 13 and 14. We were instructed to create a strand of DNA based on the code it gave us for the left strand. When we completed the 9 rung ladder of DNA it should look like this:

Then you were to duplicate the DNA strand and should come out with two identical DNA ladders.

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

scribe for 11/8!

Today in class, we discussed our last disease of the day. The disease was lyme disease. The agent of this disease is bacteria. The vector of this disease is the mosquito. Then, for the rest of class we reviewed for the TEST TOMORROW. We went over the quiz we took yesterday, and watched a

few short clips to review. The review session for our disease and immunity test will be

tomorrow morning, so make sure you try to make it of you have any questions!

Also, don't forget to check out the muddiest points, and make sure you've posted your comments!

STUDY STUDY STUDY! Check the moodle page to review with animations that Mrs. Stein

has posted! Good luck tomorrow!

Muddiest point

My muddiest point is what is the diff between B and T cells?

GabbyM's Muddiest Point

I have already posted a muddiest point but while I was reviewing for the test right now I found that I don't understand the difference between a phagocyte and a macrophage. Is there a difference or are they the same thing. Help is appreciated!!