Note Taking Guide 1
Topic # 3034
Mutations
Torey Birchmeier
I.
Mutations
A.
____________________________________________________________
___________________________________________________________.
II.
B.
The change must be capable of being transmitted fully to future generations
without change.
C.
An example of a mutation is the _______________characteristic in beef
cattle.
Causes of Mutations
A.
B.
III.
An ___________________________________________
Exposure to radiation
C.
Exposure to ________________________________________________
D.
Other genetic abnormalities such as extra chromosomes or chromosomes
crossing or breaking
Mutations in Evolution
A.
Mutations are recognized as the primary source of the hereditary variations
that make evolution possible.
B.
Mutations can either be________________________________________.
C.
Mutations that help an animal survive are continued because survivors
__________________________________________________________.
D.
IV.
Mutations in Commercial Agriculture
A.
V.
Mutations that are harmful to a species are less likely to be passed on
because_____________________________________________________
______.
Perfect Example……..
B.
A natural occurring mutation or change occurred in the horse.
C.
Over many years the horse’s hoof characteristics changed to suit a
changing environment.
D.
The one hoofed horse today is much more useful to agriculture than its
smaller _________________________ counterpart “eohippus” which
lived long ago.
Other Mutation Examples
A.
_____________________________________
B.
Plant breeders have taken advantage of natural selection for a strain of
rust resistant in wheat.
C.
Breeders have breed this trait into other wheat strains to help aid in
agriculture production
D.
______________________________________
E.
Geneticists have selected for high protein varieties and have tried to breed
them exclusively
F.
This selection is “_________________________” rather than based on
“_____________________________” such as the horse