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DNA VS. RNA
SAME
Backbone: sugar and
phosphate group
attached to a nitrogen
base
A nucleotide too!
What is a
nucleotide
the monomer of?
They share: Adenine,
DNA VS. RNA
DIFFERENT
•RNA is single stranded
•Instead of of thymine,
they have Uracil (U)
•RNA stands for
ribonucleic acid
•RNA is in the cell’s
cytoplasm
With a partner…
DNA
•Name
•Structure (bases and
backbone)
•How many strands
•Where is it found?
RNA
DO NOW
1. What nitrogen base does RNA have that
DNA does not have?
2. If this strand of DNA is: ATGCC, what
would be the complementary RNA
strand?
3. RNA is __________-stranded
AGENDA
1. Do Now (5 minutes)
2. DNA Structure and Replication W/S (20-25
minutes)
3. DNA vs RNA (10 minutes)
4. Independent Practice RNA vs DNA (10
minutes)
5. Comprehension Check (5-10 minutes)
6. Transcription Notes
7. Retake Test 4?
8. Progress Report Questions?
OR
DNA
RNA
DNA OR RNA
Has two strands of sugar.
DNA OR RNA
Stores the “genetic code”
DNA OR RNA
Has uracil as a base.
DNA OR RNA
Found in the nucleus.
DNA OR RNA
Is made up of sugar,
phosphates, and bases.
DNA OR RNA
Has one strand of sugar.
DNA OR RNA
Is located in the cytoplasm or at
the ribosome.
DNA OR RNA
Has deoxyribose sugar.
DNA OR RNA
Is made up of nucleotides.
DNA OR RNA
In this molecule A pairs with T.
DNA OR RNA
Has ribose sugar.
DNA OR RNA
In this molecule C binds with
and G.
INDEPENDENT
PRACTICE
http://www.dnatube.com/video/1017/Compare-DNA-and-RNA-in-structural-basis
Do Now
Vocabulary
Unit 5
Transcription
Codon
Anticodon
Translation
Amino Acid
Protein
Vocabulary
Unit 5
PROTEIN SYNTHESIS
Transcription
1. What is a chromosome?
2. What is a gene?
WHY WEMeet
REVIEW
our big goal!
PROTEIN SYNTHESIS
Transcription
PROTEIN SYNTHESIS
Transcription
http://www.biotechnologyonline.gov.au/
popups/int_transcription.html
PROTEIN SYNTHESIS
Transcription
https://www.youtube.com/watch?v=41_
Ne5mS2ls
PROTEIN
SYNTHESIS
Guided Practice -- Transcription
DNA:
mRNA:
TCA GCT AAT TCG
DNA: AAG GCT ACG TCA
mRNA:
4 Steps to Transcription
Remember
1. Enzyme breaks H bonds and
runs along DNA
1. Matching mRNA nucleotides
added
2. Sugar-phosphate mRNA
backbone made
3. Hydrogen bonds reform in
DNA
4. mRNA moves out of nucleus
Now answer
the
Q…
Transcription
PROTEINIn your
SYNTHESIS
notes…
Transcription
Complete this Independent Practice
Homework
Due Tomorrow!
http://learn.genetics.utah.edu/content/b
egin/dna/transcribe/
Kids who are done
1. Why do we
transcribe DNA to mRNA?
2. What does the m in mRNA stand
for?
3. List the 5 steps for DNA
transcription
What is life?
• This is one of the biggest questions in biology,
which we all know is the study of life.
• So, can some of the monsters we see on
Halloween, for example, ghosts, vampires,
werewolves, and zombies actually exist?
Werewolves!
This shift is supposed to happen during a full
moon.
Hypertrichosis
A real disorder that promotes excessive hair
growth.
Vampires!
Creatures known as
vampires have been
described in legends for
thousands of years. All
share one common
attribute: they live off of
drinking the blood of
other creatures.
Vampires!
We know that this kind of subsistence is
possible. In Mexico and South America, there
are true vampire bats, Desmodus rotundus,
that live off the blood of other animals.
Renfield’s Syndrome
• A psychological disorder where people crave
blood. Overwhelming compulsion to drink
blood because of the belief that blood
empowers them.
• Porphyria—skin that can’t take sunlight, turns
purple
PROTEIN SYNTHESIS
A codon – 3 nucleotides in a row in
mRNA molecule
ACG UAA GUA
Learning transcription and translation
without notes!
Rest of the period to complete this lab
Raise hands for any questions