Transcription and Translation
Where does Transcription happen
(What is) The Nucleus in the cell
What is the genetic code
A way to translate information like DNA sequences into proteins.
What is a codon
Sequence of 3 nucleotides.
Is this DNA
(--)
(--)
(pretend those are connected)
(What is) TRUE
DNA Includes Uracil?
(What is) FALSE
What happens in step 1 of transcription
(What is) Enzyme called RNA Polymerase binds DNA; Tells DNA to unwind
What does it mean by each codon Codes for just 1 amino acid mean. (What does it provide)
So the correct amino acid is always selected
How many codons are in a protein.
20 codons.
RNA is ________ than DNA so...?
(HINT - has to do with size)
RNA is smaller than DNA so it can go through the pores in the nuclear membrane.
The genetic code states that all living things come from 1 common ancestor?
(What is) TRUE
What does Transcription do to help Translation.
During transcription the RNA takes the sequence of the DNA giving it then to the ribosome.
The genetic code Is all the same in every single living species because...
(what is) Every living thing has 1 common ancestor.
What is a start codon
a codon that signals the ribosome the all clear to start translating mRNA
The RNA For this DNA strand is this. (TRUE OR FALSE)
T A G C G A T T A G (DNA)
A T C G C T A A T C (RNA)
(What is) FALSE there is no T in RNA it is U (Uracil)
RNA has 3 types?
(What is) TRUE
Transcription occurs where?
Ribosome in cytoplasm
What does it mean when most amino acids are encoded by more that 1 codon provide.
Reduces risk of wrong amino acid being chosen if there was a mistake in the code.
What is a stop codon.
A codon that signals the ribosome that it is at the end of the protein synthesis
List 3 differences about DNA and RNA
DO NOT SAY SIMPLE THINGS!!!
1. size
2. has nitrogen base U (uracil)
3. Contains sugar ribose
Translation takes place in the mitochondria and is the first step of protein synthesis
FALSE
What happens in Translation?
(What is)
1. RNA goes to a ribosome.
2. ribosome reads sequence of codons
3. tRNA brings amino acids in correct order
4. amino acids join together to create a chain
5. chain keeps going until stop codon reached
What are all of the characteristics of the genetic code
1. Same in all living things
2. Codon Codes for 1 amino acid
3. MOST amino acids are encoded by more than 1 codon
Is this correct (you may use your graphs)
RNA - U A C G G U A C U
CODON - TYR GLY THR
YES it is correct
What is the RNA Pair for this DNA strand?
T T C A G C C C T A A C T G G G
(What is) A A G U C G G G A U U G A C C C
In transcription the amino acid chain never ends
FALSE