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