Wednesday, February 16, 2011



The test has been moved:
You can take it on Thursday during Homeroom and studyhall if you want, or on Friday during class.
NOTES:(order of what happens in cell)
(Part 1 transcription)
1. DNA unzips.
2. Nucleotides (floating around) connect to one side of the unzipped DNA.
3. mRNA is made(copy of gene)
4. mRNA leaves and DNA re-zips
5. The mRNA leaves the nucleus (through pores)
(Part 2 translation and protein synthesis)
1. mRNA heads to ribosome
2. mRNA joins with ribosome
3. Ribosome reads message 1 codon at a time(3 nucleotides)
4. tRNA (that match the codon from mRNA) brings the amino acid to ribosome.
5. Ribosome takes the amino acids
6. This process is repeated many times.
Differences between transcription and translation.
Result: Transcription you get mRNA and replication you get DNA
Copies: One part of DNA (gene) is copied in transcription. In replication all of the DNA is copied.
*Translation= Protein synthesis (making protein). *Transcription= Making mRNA *Replication= making new DNA.

This can get very confusing at some points. It can be confusing because you forget or confuse transcription and translation or think protein synthesis is a totally different when in reality it is the same thing as translation!!!
KD (3rd)

1 comment:

  1. So, pretty much the mRNA make the copy of the gene and the tRNA is the one that delivers the amino acids....
    ~Erica Wirth~

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