R-R-R-R-Review for G-G-G--Genetics (oh hey, I'm Ke$ha)

SO BASICALLY
in class we got some papers passed back and we went over mutations. We also got to ask questions about the test (not really). We didn't have time for the 60 minute video Mrs. Stein planned on having us watch (surprise).

NOW ITS TIME FOR R-R-R-R-R-REVIEW!!!!!

Chapter 12: DNA

What makes up a Nucleotide?
-a nitrogen base, a sugar, and a phosphate group

What are the Nitrogen bases in a Nucleotide?

-Adenine, Guanine, Cytosine, and Thymine.

What is the sugar in a Nucleotide?

-Deoxyribose sugar

What do each Nitrogen base pair to? What type of bond hold them together? Why is that bond weak and not a strong bond?

-Adenine to Thymine, Guanine to Cytosine, and Thymine to Adenine and Cytosine to Guanine. A Hydrogen Bond and it is weak because during replication the DNA polymerase needs to be able to separate the double helix easily.

Summarize the events of DNA replication:

-Strands unwind

-hydrogen bonds break (With help of enzyme DNA polymerase)

-New strand is proofread

-sugar phosphate bonds join nucleotides together

When in a cells life does DNA replicate? Where in the Cell does it replicate?

-During the S phase of interphase and in the Nucleus.

Following DNA replication the molecule results in 1 new strand and one original strand.

Write the complimentary Bases for the following strand of DNA

A- T

T- A

G- C

A- T

C- G

G- C

A- T

T- A

Chapter 13 Review-RNA & Protein Synthesis

Explain how RNA differs from DNA. Name 3 main types of RNA.

-RNA is only one strand, and it does not have Thymine, instead it has Uracil. rRNA, mRNA and tRNA

Describe transcription and editing of RNA.

One strand of DNA serves as a template for the synthesis or mRNA (DNA: TACCAGGTT) ----- (mRNA: AUGGUGGAA)

Also, you have to be able to use the Codon Chart.

Summarize translation: Picture below

Incase you haven't NOTICED, your homework is to study for the test tomorrow. AND YOUR TRIBUNE ARTICLE IS DUE TOMORROW

Have a great day people!

P.S THIS TOOK ME FOREVER AND I HAD ALOT OF HOMEWORK TO DO, SO I WAS NOT VERY HAPPY.

but to end on a good note, TOMORROW IS TECHNICALLY FRIDAY!! YAY!!!!!!!!!!

and the next scribe is.....

Yvette! all you have to write about is our test. (idk if i should've chosen a scribe but whatevs)

Scribalicious

On friday the 9teenth: we watched the baby monkey video thing like 40 times and the teach me how to bucky thing. Than, we went to math the lab and started this little webquest thingy on things like DNA, genes, chromosomes, heredity, and traits. i have hitchhiker thumb or whatever.

HW: Read 13.3, article about how u discovered dna due tuesday,and test tuesday. STUDY UUUUUUUUUUUUUUUUUP!!!!!

the next scribe is
serena

DNA, RNA, Protein Synthesis Practice

Check out this review link... it should help you to review for the test on Tuesday! Be sure to log in using your name.

http://www.quia.com/quiz/891796.html

Protein Synthesis Lab

Today we started off by turning in UP pgs. 15-20 and congratulated Sam for doing well on the first time scribing. Next we jumped right into the lab on Protein Synthesis. This lab was meant to help us further understand the role sof mRNA and tRNA through constructing models of protein synthesis.

LAB: Step One: We had t build a DNA molecule with a specific sequence of nucleotides.

Step Two: Each group had to "unzip" the DNA molecule into two strands.

Step Three: Take the left strand and construct a matching mRNA nucleotide strand (this step is the process of transcripton)

Step Four: Unzip the molecule and take the mRNA strand and take it to the ribosome in the cytoplasm.

Step Five: Match up the bases of the mRNA with the ones from tRNA. (Translation)

Step Six: Attach the amino acids and the polypeptide bonds to the correct molecules.

Step Seven: Detach the amino acid chain from the tRNA's

HOMEWORK:

Finish Lab in Up (15-20), UP 27-28, and Tribune Arrticle(11/23)

THE NEXT SCRIBE IS....

J.R.

Pokemon Transcription

Today en la clase Mrs. Stien collected our flow chart HW and gave us three pictures for notes. We watched an animation of transcription We took notes on transcription and translation. Here are the notes:

TRANSCRIPTION= (RNA Synthesis) One strand of DNA serves as a template for the synthesis or mRNA (DNA: TACCAGGTT)-----(mRNA: AUGGUGGAA)

this thing a ma giger right hereee^ is the trancribe

Occurs in the Nulceus

RNA plumerase joins RNA nuleotides

______________________________________________________________________

TRANSLATION=

mRNA- 3 codon (AUG)

tRNA- 3 anticodon (UAC)

Example of start codon- AUG

>>> 3 types of each.

Example of stop codon- UAA

mRNA attaches to a ribosome

Each tRNA carries 1 A.A.

Anticodon on tRNA matches with a codon on mRNA

A.A. bond together forming a polypeptidee chain.

Long polypeptide chains make a...... You guessed it PROTIEN!!!

Picachu I choose you.
Picachu= Michael D.

DNA Workshop!

Check out the DNA Workshop!  Complete the activity and email me the following:
1.  What color is the backbone of the RNA molecule?
2.  What three amino acids are formed at the end of the protein synthesis activity?

Have Fun!

during class: mrs. S checked in our homework. we also went over the homework. we took notes!!!!
NOTES:
rRNA: makes up alot of the ribosome, cotains instructions to make ribosomes,
mRNA: messenger. carries the instructions from DNA to ribosome
tRNA- "transfer". carries amino acids to the growing polypeptide chain.
Amino acid: building blocks of proteins
transcription: DNA ---- mRNA
translation: mRNA ------ protein.
HW: 13.1 and 13.2 flow map. "protein synthesis"
2. tribune article. 11/23
3. TEST 11/23