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19 terms

Gene Transcription I

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phenotype
Proteins are the links between genotype and ___
gene expression
___ ___ is the process by which DNA directs protein synthesis, includes two stages: transcription and translation
garrod
In 1909, British physician Archibald ___ first suggested that genes dictate phenotypes through enzymes that catalyze specific chemical reactions
metabolic pathway
Linking genes to enzymes required understanding that cells synthesize and degrade molecules in a series of steps, a ___ ___
gene, enzyme hypothesis
George Beadle and Edward Tatum developed a one ___- one ____ ___, which states that each gene dictates production of a specific enzyme ( now known as one gene- one protein hypothesis)
true
Some proteins are not enzymes. True or False
transcription
___ is the synthesis of RNA under the direction of DNA
translation
___ is the synthesis of a polypeptide, which occurs under the direction of mRNA
ribosome
The site of translation occurs in the ____
nucleoid
Transcription occurs in the ____region (prokaryotes)
processing
Eukaryotic RNA transcripts are modified through RNA ____ to yield finished mRNA
primary
A ____ transcript is the initial RNA transcrit of any gene
transcription
What is the first stage in gene expression called
polymerase
In transciption, the RNA syntheis is catalyzed by RNA ____, which pries the DNA strands
promoter, terminator
The DNA sequence where RNA polymerase attaches is called the ___; In bacteria, the sequence signaling the end of transcription is called the ___
transcription
The stretch of DNA that is transcribed is called the ____ unit
initiation, elongation, termination
During synthesis of an RNA transcript: the 3 stages of transcription are- (in order)
2
When aminoacyl-tRNA synthetase joins an amino acid to a tRNA, 3 ATP are used but ___ are lost
terminator
In bacteria, the polymerase stops transcription at the end of the ___ region