Where can DNA not go?
Out of the nucleus
In order for genes to be expressed (“made” so to speak), what two processes must occur?
Transcription and Translation
Which process of protein synthesis comes first
transcription
A complex molecule containing the genetic information that makes up the chromosomes.
DNA
What makes up the “sides” of the DNA ladder?
Alternating sugar and phosphate units
This protein adds complementary RNA bases to a strand of DNA during transcription
RNA Polymerase
What happens to the DNA strand after transcription is completed?
It zips back up
What are the building blocks of proteins?
Amino acids
What purpose does DNA serve in a cell?
Store and transmits genetic information
Name the three types of RNA.
Messenger RNA (mRNA)
Transfer RNA (tRNA)
Ribosomal RNA (rRNA)
What is the function of ribosomal RNA?
Makes up the ribosome
A sequence of three nitrogen bases is called a _____ and is the code for one _____.
Codon
Amino Acid
Identify the parts of the nucleotide
1. Phosphate
2. Sugar
3. Nitrogen base
What is the function of tRNA?
tRNA reads the message from mRNA, gathers the correct amino acids, and transports them back to the ribosome.
The first mRNA codon is called the _____ codon and the last mRNA codon is called the _____ codon.
stop
A segment of DNA on a chromosome that codes for a specific trait/protein
Gene
What about DNA, specifically, determines the traits of an organism?
the order of bases
The purpose of mRNA is to carry the protein building instructions from __1__ in the ___2_ to the __3__ located in the ___4____.
1. DNA
2.Nucleus
3.Ribosome
4. Cytoplasm
What is transcription?
Transcription is the process of forming a strand of RNA from a DNA template.
group of three bases on a tRNA molecule that are complementary to an mRNA codon
anticodon
DNA is _____ stranded; RNA is _____ stranded.
double; single
Where does transcription occur?
Nucleus
What is the Central Dogma?
Dna is transcribed into RNA which is translated into a protein
Bonds that connect amino acids.
peptide bonds
What is this molecule called?
tRNA
Transcribe and translate the following DNA strand:
TTCTACTGGCCCACT
AAGAUGACCGGGUGA
MET-THR-GLY-Stop
What is the molecule called that is notated with a red 1?
mRNA
What is located at #2?
anticodon
What does #1 represent?
amino acid