Chap 7- Gene Expression of Bacteria Flashcards
What does “expression” of DNA in Bacteria mean?
the formation of a functional product of DNA
process where info encoded in DNA is copied into RNA
transcription
complete set of genetic info in a cell/ virus
genome/ chromosome
functional unit of GENOME that encodes for a product (product is typically a protein)
gene
In order for cells to multiply, two things must be accomplished: ______
DNA replication and gene expression (transcription & translation)
Transcribing and then translating the information in DNA to produce the encoded protein
gene expression
process where info carried by mRNA is used to synthesize protein
translation
enzyme that synthesizes single strand of RNA from DNA template
RNA Polymerase
RNA made during transcription is _______ and __________ to its DNA template
complementary and antiparallel
Minus strand of DNA is the _________ for RNA , while RNA is complementary to the ______ of DNA
template; plus (Thymine is replaced by Uracil)
RNA transcript that carries one gene; mRNA molecule that carries the information for more than one gene.
monocistronic; polycistronic …. cistron = gene
Nucleotide sequence where RNA polymerase binds to start transcription.
promoter
DNA sequence that stops transcription
terminator
RNA Polymerase can only add nucleotides to what end and synthesize RNA in what direction?
3prime end; 5’ to 3’
Do RNA polymerases need primers to start working?
NOPE
part of RNA polymerase that recognizes and binds to promoters
sigma factor