Explain the process of transcription in eukaryotic organisms.
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There are three stages in these process:
HERE,IT IS
Eukaryotic transcription is more complex than prokaryotic transcription. For instance, in eukaryotes the genetic material (DNA), and therefore transcription, is primarily localized to the nucleus, where it is separated from the cytoplasm (in which translation occurs) by the entaamoeboic nuclear membrane. DNA is also present in mitochondria in the cytoplasm and mitochondria utilize a specialized RNA polymerase for transcription. This allows for the temporal regulation of gene expression through the sequestration of the RNA in the nucleus, and allows for selective transport of RNAs to the cytoplasm, where the ribosomesreside.
The basal eukaryotic transcription complex includes the RNA polymerase and additional proteins that are necessary for correct initiation and elongation.
HERE,IT IS
Eukaryotic transcription is more complex than prokaryotic transcription. For instance, in eukaryotes the genetic material (DNA), and therefore transcription, is primarily localized to the nucleus, where it is separated from the cytoplasm (in which translation occurs) by the entaamoeboic nuclear membrane. DNA is also present in mitochondria in the cytoplasm and mitochondria utilize a specialized RNA polymerase for transcription. This allows for the temporal regulation of gene expression through the sequestration of the RNA in the nucleus, and allows for selective transport of RNAs to the cytoplasm, where the ribosomesreside.
The basal eukaryotic transcription complex includes the RNA polymerase and additional proteins that are necessary for correct initiation and elongation.
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Gayuyuva:
it's fine thank you but can please say at what stage the exons and introns will be present in the rna .is it like while synthesing itself it produces exons and introns and then removed . and also please say what will happen after production of a pre rna
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Eukaryotic transcription is the process in which eukaryotic cells form transportable complementary RNA replica by copying the genetic information present in DNA.
Explanation:
The process of transcription has three main stages:
- Initiation: In this process RNA polymerase enters nucleus and binds to the promoter region. The DNA seperates into single strands and the template will be read from the 3' to 5' direction.
- Elongation: pre-mRNA nucleotides are quickly paired with their complementary baseswhich correspond with the template strand on DNA. The pre-mRNA moves in the 5' to 3' direction while the DNA template strand moves opposite to it that is from 3' to 5'. Pre-mRNA do not contain thymine hence uracil is used as a base complementary base pair for adenine.
- Termination: When the RNA polymerase reach treminator, it signals RNA polymerase to stops and leaves the DNA strand. Once the RNA polymerase releases the two complementary strands of DNA come together and again form a double helix structure and release the formed Pre-mRNA molecule.
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