#2 Mechanisms of Genetics. Transcription/Translation
Just like DNA polymerase, RNA polymerase performs a template-directed synthesis in the:
5' to 3' direction.
A cell builds its proteins from the Instructions encoded in its
A cell builds proteins from the instructions encoded in its DNA.
What type of bond forms between complementary base pairs?
Hydrogen bonds
Name the process by which the genetic code of DNA is copied into a strand of RNA.
Transcription
What process occurs before the other?
Translation and then Polymerization
Messenger RNA (mRNA) can be best described as:
a short lived RNA molecule that carries encoded information, transcribed from DNA .
What is the structure of the RNA polymerase enzyme?
multi-subunit enzyme composed of five subunits including α (two copies), β, β' and ω subunits
A Gene is ________________.
the basic physical and functional unit of heredity
Transcription is ____________.
the first step in gene expression.
How does transcription begin?
when RNA polymerase binds to a promoter sequence near the beginning of a gene