Question

what is transcription​

Answer 1

Process of synthesis of mRNA according to the nucleotide sequence present on DNA is called transcription.

Answer 2

Answer:

Transcription is the initial step for gene expression. which involves the copy of a gene and it's DNA sequence to make RNA molecules.  

Explanation:

Transcription-:

• Trascription is the initial or first step in gene expression. In this process the information from a gene is used to make a functional product like protein.
• The main reason of transcription is to make RNA copies from DNA sequence.

Process of transcription-:

• Enzyme required for the process of transcription is RNA polymerase which uses a single-strand  of DNA template to synthesize a complementary strand of RNA molecule.
• Stages of transcription-:

1. Initiation-: In this stage RNA polymerase binds to promotor region of DNA separates the DNA strands that is produce a single stranded DNA.
2. Elongation-: One template strand of DNA, acts as a template for RNA polymerase and polymerase builds an RNA molecule out of complementary nucleotides, which make a chain and elongates in a direction 5' to 3'.
3. Termination-:The terminator sequences signal that the RNA transcript is complete. After that the transcription is over.