Answer to Question #189964 in Molecular Biology for Muhammad Abdul Sam

Question #189964

Only one strand of the double helix is used as template for transcription. How would the transcription machinery recognize the template strand for transcription of a particular gene? Is it necessary that this strand will be used as template for transcription of all genes of that particular organism?

1
Expert's answer
2021-05-10T01:03:07-0400

The transcription machinery recognizes specific sequences on one strand of the double helix (promoter). These sequences determine the template strand. However, promoters can be located on both strands and genes in the genome of the particular organism can be transcribed from different DNA strands.


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