http enmwikipediaorg wiki What happened to the traits from the Cootie from the East Hypothesize what happened to the traits Design an experiment to test that hypothesis Predict your results based on your hypothesis ID: 930010
Download Presentation The PPT/PDF document "Cootie Genetics http:// www.cbguidesblog..." is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
Slide1
Cootie Genetics
Slide2http://
www.cbguidesblog.com
Slide3http://
en.m.wikipedia.org
/wiki
Slide4Slide5Slide6Slide7Slide8Slide9Slide10Slide11What happened to the traits from the Cootie from the East?
Hypothesize what happened to the traits
Design an experiment to test that hypothesis
Predict your results based on your hypothesis
Conduct your experiment
Slide12Mating the second generation Cooties
To make a cootie baby:
1.) Both mom and day reach into cup #1 and bring out a body color factor
(red or blue cube), the information will be recorded on the computer
2.)
Both mom and day reach into
cup #2
and bring out
the ear type factor
(white
or black
cube
), record this information
3.
) Both mom and day reach into cup
#3
and bring out the
eye type factor (purple or yellow cube), record this
information4.) Both mom and day reach into cup #4 and bring out the mouth type factor
(light green or orange cube), record this information5.) Both mom and day reach into cup #5 and bring out the
foot type factor (brown or green cube), record this information
What does your baby look like? Was your hypothesis supported or refuted?
Do you need to make more babies to figure out what is going on? Remember, keep it random, nature cannot pick out specific trait factors. Make 40 babies total.
Slide13Why are their two color cubes in your cups?
Slide14Slide15Cootie
from the
East
Cootie
from the West
Red
R
Blue
r
Wide
Ear
W
Bow
w
Plain
eye
P
Lashes
p
Lips
L
Tongue
l
Boots
B
Feet
b
Cootie Traits
Slide16Cootie Data
Total # of
Total # of
Total # of
Total # of
Total # of
Total # of
RR
Rr
rR
rr
Red
blue
9
12
9
10
30
10
WW
Ww
wW
ww
Wide-ear
bow
10
15
6
9
31
9
PP
Pp
pP
pp
Plain-
eye
lashes
10
9
10
11
29
11
LL
Ll
lL
ll
Lips
tongue
11
11
9
9
31
9
BB
Bb
bB
bb
Boots
feet
9
13
9
9
31
9
Slide17What does it all mean
Trend—30:10 ratio of traits from the east versus traits from the west—or 3:1 ratio of dominant to recessive phenotypes
Trend—10:10:10:10 ratio of trait factors RR,
Rr, rR,
rr
—or 1:1:1:1 ratio.
Rr
and
rR
are the same thing– 1:2:1 ratio of Homozygous dominant (RR) to Heterozygous (
rR
& rR
) to Homozygous recessive (
rr
) genotypes
Slide18Punnett Square for the Homozygous Cooties—first generation mating
R
r
Cootie from the East
Cootie
from
the
west
R
R
R
R
R
r
r
r
r
r
Slide19Punnett Square for the Heterozygous Cooties—second generation mating
R
r
First Generation Offspring
First Generation Offspring
R
R
R
r
r
r
R
r
R
r