bellwork obj: swbat compare & contrast dna with rna 1. what does dna stand for? 2. based on your...
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BELLWORKOBJ: SWBAT COMPARE & CONTRAST DNA WITH RNA
1. What does DNA stand for?
2. Based on your answer to #1, predict what RNA stands for?
3. Do all living things have DNA, why or why not?
4. What other materials will you bring tomorrow to put on your science fair poster?
Take out your slates
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If you do not bring sci. fair board materials tomorrow:
-if you have already built your FINAL board, you may work on other classwork.
-if it is ‘at home’ or you didn’t do it or have it: you will help clean up the classroom and do any menial tasks I have for you.
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RNA & Central Dogma
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Look at the compare/contrast RNA and DNA diagram in front of you. With your partner write down at least 3 differences and 3 similiarities between DNA and RNA on your slate.
Think: Why might these differences exist?
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DNA vs RNA
Deoxyribonucleic Acid
•How many nucleotides?
•3 parts of a nucleotide?
•What does the “B” stand for?
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DNA vs RNA
Deoxyribonucleic Acid
•How many nucleotides?
•3 parts of a nucleotide?
•What does the “B” stand for?
Ribonucleic Acid
What’s the
difference?
OH!
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Remember this?
Structure is related
to function!
What are DNA’s 2 functions?
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RNA Structure Notes
•RIBOSE is the sugar in RNA nucleotides (instead of deoxyribose)
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RNA Structure Notes
•RIBOSE is the sugar in RNA nucleotides (instead of deoxyribose)
•Uracil (U) is used instead of T
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RNA Structure Notes
•RIBOSE is the sugar in RNA nucleotides (instead of deoxyribose)
•Uracil (U) is used instead of T
•RNA is usually single-stranded
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Vote by sign language:
DNADNA
AGCCTGCTATCGGACGAT
RNA
RNA RNA
NA NA
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Try this
What might it look like if you turned this double stranded DNA molecule into an RNA copy?
AGTTCGATCAAGCT
RNA: UCAAGCUWhich DNA strand would this RNA be the COMPLEMENT of?
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Try this
What might it look like if you turned this double stranded DNA molecule into an RNA copy?
AGTTCGATCAAGCT
RNA: UCAAGCUWhich DNA strand would this RNA be the COMPLEMENT of?
Do the RNA complement for the bottom DNA strand
AGUUCGA
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DNA vs RNA
RNA has a
different structure
… predict
it’s functions (jobs)
Hint: other names for RNA
messenger RNA
ribosomal RNA
transfer RNA
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Central Dogma (“Big Idea”) of Biology
DNA
RNA
Protein
DNA stores
information to run
cell
Proteins
actually DO the
work in the cell
RNA’s function
is to make
proteins!
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Why are proteins so important? Proteins are made of tiny subunits…what
are they called?
What are some functions of proteins? (Hint: ) Chemical Reactions (enzymes) Immune System (antibodies) Growth & Development (hormones) etc.
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Types of RNA
mRNA: messenger RNA makes a copy (message) of the information stored in DNA & moves the info out of the nucleus! (DNA doesn’t leave nucleus)
Codons are 3 letter “words” that make up the message- it’s a recipe for a protein
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Types of RNA
rRNA: ribosomal RNA folds into a ribosome which reads the mRNA codons and connects amino acids into a chain that will become a proteinrRNA folds into 2
subunits (large & small)
Together, they make the ribosome!
Realistic image of rRNA folded
into a ribosome
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Types of RNA
tRNA: transfer RNA transports amino acids to the ribosome, and uses an anti-codon to match the correct amino acid to the correct mRNA codon. It then transfers amino acids to the growing chain.tRNA is
T-shaped!
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Turn to your neighbor
Summarize the 3 types of RNA and how each is related to protein synthesis
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Practice Putting It All Together
Which of the following am I showing/describing?DNA mRNA rRNA tRNA
Protein
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Practice Putting It All Together
Which of the following am I showing/describing?DNA mRNA rRNA tRNA
Protein
Amino Acids are the small subunits
of ___________
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Practice Putting It All Together
Which of the following am I showing/describing?DNA mRNA rRNA tRNA
Protein
Made with
Uracil (U) instead of
T:___________
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Practice Putting It All Together
Which of the following am I showing/describing?DNA mRNA rRNA tRNA
Protein
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Practice Putting It All Together
Which of the following am I showing/describing?DNA mRNA rRNA tRNA
Protein
The central dogma of biology says that ______ RNA
Protein
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Practice Putting It All Together
Which of the following am I showing/describing?DNA mRNA rRNA tRNA
Protein
Transports amino acids to the ribosome:
___________
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Practice Putting It All Together
Which of the following am I showing/describing?DNA mRNA rRNA tRNA
Protein
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Practice Putting It All Together
Which of the following am I showing/describing?DNA mRNA rRNA tRNA
Protein
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Practice Putting It All Together
Which of the following am I showing/describing?DNA mRNA rRNA tRNA
Protein
Reads mRNA and assembles
amino acids into a chain:
___________
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Practice Putting It All Together
Which of the following am I showing/describing?DNA mRNA rRNA tRNA
Protein
A copy of the information in DNA that can be taken
out of the nucleus:___________
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Why not skip the DNA step?
DNA
RNA
Protein
DNA stores
information to run
cell
Proteins
actually DO the
work in the cell
RNA’s function
is to make
proteins!
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Closure- Structure & Function of DNA & RNA
DNA
RNA
*When you are finished work on the DNA/RNA worksheet*