Tuesday, August 18, 2009

Transcription in Eukaryotic and Prokaryotic Cells



Transcription In Eukaryotic Cells

1 Occurs in the nucleus
2 DNA is wounded around histones to form nucleosomes and packaged as chromatin.
mRNA modifies through splicing, capping, and poly A tail.

Same

1 Enzymes are homologous.
2 DNA and RNA
3 Chemical synthesis called transcription.


Transcription In Prokaryotic Cells

1 Occurs in the cytoplasma.
2 Not usually modified
3 DNA is much more accessible to RNA polymerase.

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