Gene Transcription & RNA modification Flashcards
Gene
Is a segment of DNA that is used to make a functional product (either RNA or polypeptide)
Transcription
Making a copy of nucleotides sequence (making an mRNA from DNA sequence)
Protein coding genes (structural genes)
Encode the amino acid sequence of a polypeptide (make proteins)
When a __________ is transcribed the 1st product is an mRNA (messenger RNA)
Structural gene
________ is the process where DNA sequence is used to form an mRNA
Transcription
Translation
The sequence of nucleotides within the mRNA determines the sequence of amino acids in a polypeptide to make a protein (the protein then determines traits & phenotypes we have)
Describe central dogma
Gene (DNA)
(transcription)
mRNA
(translation)
Proteins (polypeptides to form proteins)
_________ requires base sequences that perform different functional roles
Genes expression
_________ can turn on genes to make a product
Gene expression
__________ goes through transcription & translation
Structural genes
Promoter region
Provides a site to begin transcription
Terminator region
Site where the end of transcription happens
DNA is _________ into mRNA from promoter to terminator region
Transcribed
Transcription factors
Proteins that recognize base sequences in the DNA & control the rate of transcription
Regulatory sequences (regulatory elements)
Short stretches of DNA that are involved in the regulation of transcription
Ribosome -binding site
Sequence in mRNA that provides a location for the ribosome to bind & begin translation
_______ contains codons to make polypeptide sequences where the 1st is the start codon & the stop codon ends translation
mRNA
Genes have ________ like regulatory sequences, promoter, terminator region & copied region
Sub region
__________ where the regulatory proteins bind & has temporal & spatial control
Regulatory sequence
__________ where the RNA polymerase binds to make mRNA (where transcription occurs)
Promoter region
_________ contains the sense strand
(which is the same as mRNA & contains U instead of T)
Copied region