Enzymes
Enzyme that prevents damage potentially caused by DNA helicase
What is topoisomerase?
This structural characteristic of eukaryotic DNA distinguishes it from prokaryotic DNA
What is linear?
The term commonly used to refer to the non-template strand during RNA transcription
What is the coding strand?
This terminal amino acid ends a polypeptide chain and is coded for by a STOP codon
What is nothing?
A mutation to this protein will likely cause hairpinning and re-annealing in the separated template strands of DNA
What are single-stranded binding proteins?
The direction DNA polymerase reads the template strand
What is 3' to 5'?
This "box" is commonly found at the site of origin of eukaryotic transcription
What is the TATA box?
Considered the third section in an 80s eukaryotic ribosome, this site is the point at which a new protein is added to the growing polypeptide chain
What is the A site?
These conditions would result in high expression of the trp operon
What is low tryptophan?
This specific DNA polymerase is responsible for synthesizing a new DNA strand
What is DNA polymerase III?
This type of DNA mutation is most likely to result in a frameshift mutation
What is an insertion (or deletion) mutation?
A precursor to mRNA, this type of RNA is subjected to splicing in preparation for translation
What is pre-mRNA?
This term refers to the type of RNA that is complementarily paired with the mRNA to aid protein synthesis
What is tRNA?
A mutation to this key component would result in two single stranded, separate, non-annealed strands of DNA
What is DNA primase?
The most likely mutational cause that would hinder DNA replication via twisting and breaking in G1
What is a mutation to topoisomerase?
Characteristic of eukaryotic transcription, these three steps constitute the procedure of pre-mRNA processing
What is splicing, addition of the 5' cap, and addition of the polyA tail?
In prokaryotic translation, the start codon codes for this amino acid
`What is f-Met?
These three enzymes are coded for by the lac operon
What are Beta-galactosidase, permease, and transacetylase?
A mutation to this key component of DNA replication would result in multiple discontinuous fragments on both strands
What is the DNA sliding clamp?
The most likely mutational cause that would result in segments of RNA primer left scattered throughout the newly synthesized DNA strand
What is a mutation to DNA polymerase I?
What is rho protein?
These three codons code for a "STOP" in translation
What are UGA, UAA, and UAG?
The conditions for both glucose and lactose (high/low) that would result in the greatest expression of the lac operon
What is low glucose, high lactose?