Mutations
Ribosomes
Transcription
Translation
Random!
100
Changes in the genetic material of a cell or virus
mutations. (shocker, i know.)
100
What is the structure of ribosomes and what are they made up of?
Small and large subunits made up of protein and rRNA
100
Transcribed from a template strand of DNA.
What is mRNA
100
The actual synthesis of a polypeptide, which occurs under he direction of mRNA
Translation
100
Parent DNA is arranged from __'(prime) to __'(prime).
3' to 5'
200
True or False: Point mutations are always transmitted to offspring.
False.
200
Name the three sites located in the ribosomes?
E (exit), P (polypeptide), A (amino acid)
200
The enzyme that pries the two strands of DNA apart and hooks together the RNA nucleotides as they base-pair along the DNA template.
What is RNA polymerase.
200
What directs the synhesis of the polypeptide
RNA
200
Every 3 bases on m-RNA constitutes this.
A Codon
300
Physical or chemical agents that interact with DNA to cause mutations
Mutagens.
300
Several ribosomes in a cluster used to simultaneously translate a single mRNA strand is called what?
Polyribosomes
300
The DNA sequence where RNA polymerase attaches and initiates transcription is known as.....
What is the Promoter.
300
a small ribosomal subunit binds to a molecule of
mRNA
300
These are monomers polymerized to produce proteins.
Amino Acids
400
Most mutagens are _________ (hint: cause cancer)
Carcinogens
400
Which site is responsible for holding the polypeptide chain? For holding the incoming tRNA with an anticodon?
P site; A site
400
The sequence that signals the end of transcription is...
What is the Terminator.
400
As a molecule of mRNA is moved through a ribosome, ____ are translated into amino acids
codons
400
What is it called when a protein loses and then regains it's secondary or tertiary structure before and after protein synthesis?
Protein Folding
500
What type of mutation is most likely to have a harmful effect on an organism?
A single base insertion near the start of the coding sequence
500
What does the stop codon code for?
Release factor
500
Which of the following is not true of RNA processing? A. exons are excised and hydrolyzed before mRNA moves out of the nucleus. B. The presence of introns may facilitate crossin over between regions of a gene that code for polypeptide domains. C. Ribozymes may function in RNA splicing. D. RNA splicing may be catalyzed by spliceosomes.
What is A.exons are excised and hydrolyzed before mRNA moves out of the nucleus.
500
what are the interpreters
tRNA molecules
500
This enzyme is used to attach an amino acid with t-RNA.
Aminoacyl-tRNA synthetase
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