1. Copies genetic information from DNA: The RNA molecule acts as a messenger, carrying the genetic instructions encoded in DNA to the ribosomes, where protein synthesis takes place.
2. Uses DNA as a template: The RNA molecule is synthesized using one strand of the DNA molecule as a template. This process is catalyzed by an enzyme called RNA polymerase.
3. Creates a complementary strand: The RNA molecule is built using complementary base pairing rules. Adenine (A) in DNA pairs with uracil (U) in RNA, thymine (T) in DNA pairs with adenine (A) in RNA, guanine (G) in DNA pairs with cytosine (C) in RNA, and vice versa.
4. Creates a messenger RNA (mRNA) molecule: The final RNA molecule produced during transcription is called messenger RNA (mRNA). This mRNA molecule then travels out of the nucleus and to the ribosomes.
In summary: Transcription is the process of copying a segment of DNA into a corresponding RNA molecule. This RNA molecule, specifically mRNA, carries the genetic information from the DNA to the ribosomes for protein synthesis.