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When we study about transcription, we say that transcription is a process of conversion of dna into rna.
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Dna is the genetic material that carries information from one generation to the next generation of an organism and rna is the expressive form of dna.
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Through the process of transcription, dna or one of the templates of dna gets read with the help of an enzyme known as rna polymerase.
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With the help of this enzyme rna polymerase, this strand of dna is read and coded to form a rna.
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Now, this is a rna molecule.
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The only difference between an rna and a dna molecule is that rna consists of uracil at places of thymine.
01:08
Dna does not consist uracil but it consists of thymine.
01:13
Therefore, the sequence of rna looks something like aucgguac something like this.
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There is no t in the rna structure.
01:26
Now, this process of transcription is then followed by a process of translation in which this mrna or an rna molecule gets converted to form proteins which then express themselves and gives us a phenotype of the organism.
01:47
Now, when we say that transcription takes place with the help of an enzyme rna polymerase, we say that in bacterias there is one single enzyme that takes place takes care of the complete transcription process.
02:06
This bacteria, this rna polymerase or the bacterial rna polymerase consists of a core enzyme that is referred to as alpha 2, beta 2 and it consists of a sigma factor...