1.3. Identity: Molecules and Cells

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Nov 30, 2013 (3 years and 11 months ago)

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1
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3
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Identity:
Molecules and Cells

Foldable Style:
One Envelope, Simple


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Assignment
Name

Details

Where

1.3.1.

DNA Background

& Structure

Include a picture showing the structure of DNA. On the
picture, label the backbone, a phosphate ion, a Deoxyribose
sugar molecule and the nitrogenous bases. Fill in the
bases, based on hydrogen bonding. Also include a picture
that shows that DNA is foun
d packaged as chromosomes in
the nucleus of cells. Record who is credited with
discovering DNA & in which year. Write a paragraph
explaining the relationship between the words
chromosomes, DNA, genes, proteins and traits.

Page 1 (Front
Cover)

1.3.1.

Ide
ntity
(Biometrics)

Research how much DNA varies from human to human and
record it. Make a shutter fold with 4 shutters. Label the
shutter fold “Biometrics” and record the literal meaning of
the word. Make each shutter about ONE type of biometrics.
Labe
l each flap. Include a PICTURE of that type of
biometric analysis. Under the flap, write a STRENGTH and
WEAKNESS of that method of biometric analysis (you may
choose 3 forms of biometrics to discard b/c I gave you 7)

Page 2

1.3.1.

Cutting &
Amplifying
Genes

Divide this panel into 2 parts

restriction enzymes &

PCR.
For the restriction enzymes section, research where
restriction enzymes come from (from what organism and
what does it do with them). Include a picture and
description. Make a list of at least 4 different kinds of
restriction enzymes and the DNA s
equence they each cut
(include EcoRI, which I’ve given you a picture of). For the
PCR section, include the name of the process that PCR
stands for and break the “P” word into roots. Summarize the
PURPOSE of PCR

what’s it used to DO? Summarize
HOW PCR do
es what it needs to do (very generally).

Page 3

1.3.1.

Restriction
Length
Polymorphisms

Explain what restriction length polymorphisms are (using
what you know about restriction enzymes and the roots in
polymorphisms). Define the term “restriction fragment
length polymorphisms” and include the picture showing a gel
with results from 3 differe
nt people. Circle and label the
RFLPs on the gel. Explain why different people have
different sized pieces of DNA after DNA is cut with
restriction enzymes. Explain who has the shortest RFLP
and how you know (remember what you learned last year
about
electrophoresis).

Page 4

1.3.1.

Running a Gel

Explain how electrophoresis works on DNA (use the charge
on DNA and the charges in the chamber and roots in your
explanation). Glue down a picture of a blank gel (on a little
pocket to hold the DNA strands). Also glue down a picture
showing the sequence
at which EcoRI cuts DNA. Take the
DNA from person #1 and person #2 and highlight the
sequence for EcoRI digestion on both (there will be
MULTIPLE cuts on each). Then “cut” the DNA by marking it
with a zig
-
zag line. Record how many RFLPs (pieces) each
ha
s and the size of each. Chart each on the blank “gel” and
then place person 1 and 2 into the pocket.

Page 5

1.3.1.

Career: DNA
Analyst

Summarize this career, including education required (all
degrees in order and number of years), job duties and
annual p
ay. You can use the picture showing the steps of
DNA analysis if you’d like.

Page 6