March 11/12

1) Bell Ringer: Finish replicating this strand of DNA AATCGATCG

2) Review

• What does DNA stand for?  Deoxyribonucleic acid
• Where is DNA found in a cell?  Nucleushttps://docs.google.com/document/d/1Rsr-qaB1m8sJvglEGdVy1Om3-I1o8yvxZrftt6GelYw/edit
• What does DNA do?  contains instruction for building proteins
• *Only 2% of our DNA contains protein coding genes.  Scientists are currently working to find out what the other 98% is for-it used to be called "junk DNA". 
• * We have about 23,000 protein coding genes.
• What is the monomer of DNA? nucleotides
• Name the three parts of a nucleotide:  sugar, phosphate group, and nitrogen containing base
• Name the 4 bases found in DNA:  adenine, guanine, cytosine, thymine
• How do they pair up? Adenine + Thymine and cytosine + guanine
• Which bases are the 2 ringed purines?  adenine and guanine
• Which bases are the 1 ringed pyrimidines?  cytosine and thymine
• What is the process called when DNA is copied?  replication
• What is the enzyme that "unzips" the DNA?  helicase
• What is the enzyme that joins the nucleotides?  DNA polymerase

We then modeled replication using this internet interactive: http://www.pbs.org/wgbh/aso/tryit/dna/shockwave.html

3) Next we took the DNA quiz

4) Then we took notes on transcription and translation
***protein synthesis you tube https://www.youtube.com/watch?v=h5mJbP23Buo

5) Last of all we worked on this worksheet that compares DNA and RNA.