RNA
The Genetic Code
Transcription
RNA Processing
Translation/Mutations
100
Uracil
What base pair is present in RNA and not DNA?
100
The genetic instructions for a polypeptide chain are written in the DNA as a series of nonoverlapping, three-nucleotide words
How is the triplet code described?
100
The DNA-directed synthesis of RNA
What is transcription?
100
RNA splicing
What is the removal of large portions of the RNA molecule that is initially synthesized called?
100
Acts as the interpreter for a series of codons along an mRNA molecule
tRNA
200
Carries genetic code for proteins
What is the function of mRNA?
200
64
How many possible code words are there?
200
Pries the two strands of DNA apart and joins the RNA nucleotides as they base-pair along the DNA template
What is the function of RNA polymerase?
200
Introns
What are the noncoding segments of nucleic acid that lie between the coding regions called?
200
Flexible base pairing at the third position of a codon
What does wobble refer to?
300
Helps incorporate amino acids into polypeptide chain
What is the function of tRNA?
300
Codons
What are the mRNA base triplets called?
300
Promoter
What is the DNA sequence where RNA polymerase attaches and initiates transcription called?
300
Interacts with certain sites along an intron, releasing the intron and joining together the two exons that flanked the intron
What is the function of a spliceosome?
300
The replacement of one nucleotide and its partner with another pair of nucleotides
What is a base-pair substitution?
400
Combined with proteins makes up ribosomes
What is rRNA?
400
AUG
What is the code for a start codon?
400
Transcription initiation complex
What is the whole complex of transcription factors and RNA polymerase bound to the promoter called?
400
Depending on which segments are treated as exons during RNA processing, many genes are known to give rise to two or more different polypeptides
What does alternative RNA splicing refer to?
400
A frameshift mutation
What happens when the number of nucleotides inserted or deleted is not a multiple of three?
500
Nucleus and cytoplasm
Where does mRNA function in Eukaryotic cells?
500
UAA, UAG, UGA
What are the codes for the stop codons?
500
mRNA is modified after transcription (HINT: this is not true for all organisms)
How is transcription different between prokaryotes and eukaryotes?
500
sNRP
What are small nuclear ribonucleo proteins?
500
holds the tRNA that carries the next amino acid to be added to the chain
What is the function of the A site?
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