Download 1. What are the four nitrogenous bases found in DNA? 1. Where in

Warm up (3 minutes)
1. Pick up a warm up
2. Pick up the student work from the front table
3. Pick up your binder in the filing cabinet
4. Complete the warm up
5. Secure all handouts in your binder
1. What are the four nitrogenous bases
found in DNA?
1. Where in the cell is DNA found?
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Living Environment:
Nature’s Sustainable Design
FOCUS QUESTIONS: What are the similarities
and differences between DNA and RNA?
Topic 4.5
RNA, p. 14
Today’s Objective:
Today’s Plan:
Identify the components of
RNAand compare and contrast it
to DNA
1.
2.
3.
4.
5.
6.
Warm Up & Review (5 min)
Turn & Talk
RNA Note-Taking
Compare/Contrast DNA & RNA
Practice
Exit Slip (5 min)
2
1. What are the 4 nitrogenous bases present
in DNA?
2. How many strands does DNA have?
Note Taking
1. RNA stands for ribonucleic acid.
2. RNA: A single-stranded nucleic acid
that makes a copy of DNA in order to
express (make) the gene as a protein
• Many of these proteins make up the traits
that make up you!
3. Protein Synthesis: DNA is converted
into RNA (transcription), which is then
used to make a protein in the ribosomes
(translation)
4. RNA is still composed of nucleotides.
RNA nucleotides are made up of three
basic components:
1. Ribose- a sugar
2. A Phosphate group
3. Nitrogenous bases
RNA nucleotides are made up of three
basic components:
3. Nitrogenous bases
There are 4 nitrogenous bases in RNA.
Adenine (A)
Guanine (G)
Cytosine (C)
Uracil (U)
5. When converting DNA to RNA, there
are rules about which bases pair together
• Adenine pairs with Uracil
A ---- U
• Guanine pairs with Cytosine
G ---- C
• This means that an A on the DNA strand will
result in or code for a U on the RNA strand. T’s in
DNA get replaced by U’s in RNA!
6. There is only one sugarphosphate “backbone” in RNA
meaning it is single stranded.
Compare & Contrast DNA & RNA: Sort the
characteristics below into the boxes labeled DNA &
RNA. Some characteristics may apply to both.
- Is double stranded
- Contains the sugar
deoxyribose
- Contains the base T
- Contains the bases
A,C, and G
- Is a type of nucleic
acid
- Is single stranded
- Contains the sugar
ribose
- Contains the base U
- Contains the bases
A,C, and G
- Is a type of nucleic
acid
Practice
U
C
A
C
G
U
A
U
A
A
G
C
T
T
A
G
G
A
Conferencing and Catch Up Time:
Work Check List
 Turn in 4.4 Reebop Genetics Lab
 Complete all Analysis Questions from 4.5
Structure of DNA Lab
 Complete 4.3 Homework: Punnett Squares
Practice
 Complete 4.1-4.6 in your Unit 4 Workbook
 Extra Credit Assignment
“Your Future is in Your hands”
www.BDCAle.wordpress.com
Living Environment:
Nature’s Sustainable Design
Announcements
• LAST DAY to hand in Unit 4.3 Homework
(Spongebob Punnett Squares Practice)
• Unit 4.4 Labs (Reebop Genetics) are due
TODAY!!
14
Exit Slip (3 minutes)
1. Return to your assigned seat
2. Complete the exit slip
3. Clean up your workstation
4. Secure all handouts in your binder
5. Put your binder away.
1. What is one similarity between RNA and
DNA?
2. What is one difference between RNA and
DNA?
3. Convert (or transcribe) the strand of DNA
below into RNA:
CGTTAGGCTACC