DNA - Transcription Flashcards
1
Q
transcription
A
- the synthesis of mRNA from a DNA template
- mRNA = messenger
- only one strand of DNA is copied
- a single gene may be transcribed thousands of times
- after transcription, the DNA strands rejoin
- DNA unwinds
- RNA polymerase recognizes a specific base sequence in the DNA called a promoter and binds to it (separates DNA)
- complementary bases are assembled
- Uracil (U) replaces thymine (T) in RNA
- in RNA U-A
- RNA is a single strand of nucleotides
