Which of the following steps happens first during transcription?

Which of the next steps occurs first throughout transcription? a. rna polymerase reaches the top of the gene. b. rna polymerase reaches the start of a gene. c. rna polymerase pulls aside the double helix. d. rna polymerase produces mrna from dna.

Reply 1

Step one in gene expression could be the transcription of RNA. What occurs right here is that part of the DNA is being replicated into the RNA by means of an enzyme. Due to this fact, what occurs first throughout transcription is that, the RNA polymerase reaches the beginning of a gene. The reply could be B.

Reply 2

The right reply is – B. RNA polymerase reaches the start of a gene. Clarification: Transcription is a phenomenon of synthesis of mRNA (messenger RNA) utilizing a template DNA, which takes place with the assistance of enzyme RNA polymerase. This enzyme reaches the location from the place the gene begins and thus follows its transcription utilizing a DNA template. It provides nucleotides within the path 5′ to three’ that’s complementary to the DNA template. Due to this fact, to start the method, enzyme RNA polymerase reaches the beginning website of gene. Thus, choice B) is the fitting reply.

Reply 3

B. RNA polymerase reaches the start of a gene

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