Today in Class:
-Finished DNA Notes (Page 10 – 19)
-Finished DNA Notes (Page 10 – 19)
Homework:
-UP p. 99-110 (including UP p. 108A-B) due Thursday
-EC- Lab #37 due Thursday
-UP p. 99-110 (including UP p. 108A-B) due Thursday
-EC- Lab #37 due Thursday
Some Important
Things in the Notes:
•RNA v. DNA
- RNA has
1. Ribose Sugar
2. 1 Strand
3. Uracil instead of Thymine
4. Smaller size than DNA- can go inside/outside nucleus
5. 3 types: mRNA, tRNA, rRNA
- RNA has
1. Ribose Sugar
2. 1 Strand
3. Uracil instead of Thymine
4. Smaller size than DNA- can go inside/outside nucleus
5. 3 types: mRNA, tRNA, rRNA
•Transcription- A molecule of DNA is copied into a complementary
strand of mRNA
Steps of Transcription:
1 .)
Initiation
2 .)
RNA Elongation
3 .)
Termination
A little animated video of Transcription: http://www.youtube.com/watch?v=aiPHi1d_t5w&feature=related
•Processing RNA
- -
In Eukaryotes, to process RNA need extra
nucleotides or cap and tail to protect the RNA and help the ribosomes recognize
it as mRNA
- -
Introns-noncoding regions (Removed before the
RNA leaves the nucleus)
- -
Exons-coding regions
•Translation-Translating the mRNA code into tRNA with the
corresponding AA’s; Takes place in ribosome
Steps of Translation:
1 .)
Initiation
2 .)
Elongation
3 .)
Termination
Another animated video on Translation: http://www.youtube.com/watch?v=5bLEDd-PSTQ&feature=related
Codons-consist of three bases; used in the translating of mRNA
Above is a chart for all the triplet codons
61 codons for Amino acids
AUG=met and start
3 are stop codons (No amino acids)
AUG=met and start
3 are stop codons (No amino acids)
And I think that’s all!
Don't forget the test is on Monday!
NEXT SCRIBE: **Olivia**
I don't see any problems! I really liked the pictures/videos you used because they helped enforce the material and they were easy to understand. :)
ReplyDeleteRegina I liked this post a lot, but if I would add one thing is maybe define the terms like elongation is this..., but other than that it was really good and was a good layout of what we did in class.
ReplyDeleteHEy Regina. I think you did great here, and your use of pictures was relly effective. But maybe you should have gone into the splicing of the RNA a little bit more, but other than that it was awesome.
ReplyDelete