Transcript Fill in the Blanks - Belle Vernon Area School District

DNA
Abbreviation- Deoxyribonucleic Acid
James Watson & Francis Crickin 1953 discovered DNA was 2
strands and twisted
Double Helix- 2 word term to describe
DNA
Codon---3 base sequence---ATA
Rules for base pairing
for DNA
•Thymine to Adenine
•Adenine to Thymine
•Cytosine to Guanine
•Guanine to Cytosine
Complementary strand
DNA to DNA
•A T G A T C G T G C A
•T A C T A G C A C G T
Parts
CYTOSINE
GUANINE
Sugar
ADENINE
THYMINE
PHOSPHATE
DNA Replication
DNA Helicase- enzyme that unzips
DNA for replication
DNA Polymerase- enzyme that
completes DNA replication
Occurs- Synthesis or S stage of
Interphase
End Result- Sister Chromatids
Replication
•A T
•T A
•C G
•G C
•T A
•C G
• OLD
•A T
•T A
•C G
•G C
•T A
•C G
old A
T
C
G
T
C
T old
A
G
C
A
G
New
•A T
old
•T A
•C G
•G C
•T A
•C G
New
old A T
AT
TA
CG
GC
TA
CG
TA
CG
GC
TA
CG
RNA
• RNA- Ribonucleic Acid
• Codon---three base sequence of mRNA
UGU
• Transcription- making of mRNA from
DNA
• RNA polymerase- enzyme that unzips
DNA for transcription.
• Ribose- the sugar in RNA
Base Pairing Rules for RNA to DNA
DNA
Thymine
Adenine
Cytosine
Guanine
mRNA
Adenine
URACIL
Guanine
Cytosine
DNA to mRNA
•A T G A T C G T G C A
•U A C U A G C A C G U
How mRNA and tRNA work together?
1. An mRNA codon pairs up with a tRNA
anticodon.
2. tRNA anticodons bring with it an amino acid.
3. The amino acid it brings is based on the code
in mRNA.
4. The mRNA and tRNA release from each
other.
5. All that is left in the ribosome is a strand of
AMINO ACIDS
6. ALSO KNOWN AS a PROTEIN
Four Differences
DNA
1. Sugar Deoxyribose
2. Strand 2 stranded
3. Stored Nucleus
4. Bases Thymine
Adenine
RNA
Ribose
1 strand
Nucleolus
Uracil
Adenine
Protein Synthesis
Protein Sythesis-Translation
Takes Place-- Ribosome
Protein- long strand of amino acids
Anticodon- three base sequence tRNA
EXTRA INFO
Three parts of a nucleotide
1.Phosphate
2.Sugar----Deoxyribose(DNA) or
Ribose(RNA)
3.Nitrogen base
Where do the bases
pair up on DNA?
At the sugars
Protein Synthesis Using mRNA
CODONS and tRNA Anticodons
Remember to
LOOK UP THE
CODON on the chart
not the
ANTICODON
Ex GGG anticodon
CCC CODON
Amino Acid :
PROLINE (CCC)