Unit 18
Assignment 3 Inheritance
Assignment 4 Genetic Modification
Lesson Objectives
• Go over Assignment 3 again to check progress
and answer any questions.
• Begin Genetic Modification
• Workshop to be used for planning / writing up
assignment or researching genetic
modification.
Assignment 3
• Pass = Genetic Crosses
• Merit = Write up of Fruit Fly practical
• Distinction = Chi Squared analysis
Distinction
• You will need:
• Set of pooled results
• Chi squared help sheet
(do not just hand this in, it needs to be written up in
your own words)
• Data table
These are the Observed results
non ebony, non vestigial
non ebony, vestigial
ebony, non vestigial
ebony, vestigial
19
9
19
4
40
17
9
1
17
5
6
4
40
1
14
1
52
17
12
6
46
14
22
7
32
18
20
16
22
1
7
1
16
3
2
1
34
15
15
6
32
7
16
3
35
10
13
1
9
5
1
2
10
8
6
3
Genetic Modification
• Write down a use for genetic modification /
genetic engineering on a post-it note.
• Stick the post-it to the board:
Assignment 4/5
• Your next assignment will require you to
understand the processes involved in working
with DNA in the laboratory, including genetic
engineering.
• Assignment 5 will require you to research and
present to the class information about genetic
modification.
GM- The basics:
• Genes can be ‘’cut’’ out of a DNA strand using
enzymes.
• What are those enzymes called?
• Restriction Endonucleases
• Microbes such as Bacteria are routinely used
in genetic engineering. Why?
• https://www.youtube.com/watch?v=zlqD4UW
Cuws
Restriction Endonuclease Action:
Some uses of GM:
•
•
•
•
Manufacture insulin
Frost resistant crops
Pest resistant crops
Gene therapy (in medicine)
Crash Course
• https://www.youtube.com/watch?v=k7ofCWJiUg
Problems!
• Genetic Engineering is still very controversial.
Why?
• Discuss with somebody sitting near you the
reasons that people might not like the idea of
modifying genes.
• Write down at least 3 things you discussed
• Write one of these on the board.
Human GM:
• https://www.youtube.com/watch?v=dKBfxoPn
T7g
Class Work
• For the rest of today’s lesson you can:
• Plan & write out by hand any remaining tasks
on Assignment 3 (inheritance) including the
Chi squared analysis.
• Research and make notes on GM. Uses,
methods used, ethics involved etc..