Download Understanding DNA

http://videos.howstuffworks.com/hsw/24990-geneticsunderstanding-dna-video.htm
Understanding DNA:
How Stuff Works
DNA BASE PAIRS
Genetic Variation:
A Key to Survival
GENETIC VARIATION
leads to
Adaptation
How do malaria parasites survive anti-malaria medications?
RESISTANT STRAIN
How Do Cells Reproduce?
http://luigigalvani5.blogspot.com/2008/...ary.html
Identical copy
http://waynesword.palomar.edu/lmexer2a.htm
Different copy
Mixing of Genes
CROSSING OVER
MINI-LAB: Observing cell reproduction
1. Mount a prepared slide of a cell
undergoing cell division.
2. Draw the cell and label the ff structures:
a. cell membrane
Note: Follow guidelines on
b. chromosomes
Making Diagrams
3. Describe what you see.
1. Accurate representation
2. 2-D diagram
3. Proper labels
4. Neatly presented
Crossing over:
Why we are different
from our parents
VC; Where do genes come from
From Gene to Protein:
An exercise in breaking
the code
1. DNA COPIES ITSELF:
Base pairings: A- T
DNA molecule
unzips breaking
the base pairs
forming 2 sides
VC: DNA Replication
C–G
Given the code of a DNA molecule,
what would be the code of the new
DNA strand?
A: TACCGGATGCCAGATCAAATC
What is the other side?
__________________________
B: TACGGGGGCGTAACCACAACT
What is the other side?
__________________________
VC: How DNA copies itself
From DNA to protein
2. CODE IS READ. The code of the
new strand (DNA copy) is READ with the T
replaced with a new base Uracil or U.
A:
____________________________________
B:
____________________________________
3. CODE IS TRANSLATED. The code is
read in groups of 3 called codons).
A:
____________________________________
B:
____________________________________
Find the Amino Acid sequence that is coded:
Use the following guide.
A:
____________________________________
B:
____________________________________
Genes(
DNA)
New copy
(RNA) is
read and
translated
Make copies
of itself
Crossover
(mixing of
code)
www.squidoo.com/geneticsresearch
A trait is
expressed
VC: What is phenotype
Amino acids
(protein) are
formed
DNA
Cracking the
Code
VC: Cracking the code
copied and read
RNA
translated
http://entomology.wisc.edu/~goodman/wgr...rch.html
PROTEIN
While the copying of DNA is
a very accurate process,
what happens when a letter
is altered?
VC: DNA Mutation
Given the code of a DNA molecule,
what would be the code of the new
DNA strand?
A: TACCGGATGCCAGATCAAATC
What is the other side?
AT_GCCTACGGTCTAGTTTAG
B: TACGGGGGCGTAACCACAACT
What is the other side?
ATGCGCCCGCATTGGTGTTGA