Download Blood Typing- GAMEDAY

Blood Typing- GAMEDAY
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Objective:
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SWBAT create and analyze Punnett Squares related to blood
typing
Catalyst:
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In northeast Kansas there is a creature know as a wildcat. It
comes in three colors, blue, red, and purple. This trait is controlled
by a gene with incomplete dominance. A homozygous (BB)
individual is blue, a homozygous (bb) individual is red, and a
heterozygous (Bb) individual is purple. What would be the
genotypes and phenotypes of the offspring if a blue wildcat
were crossed with a red one?
Agenda
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Catalyst Review
Incomplete Dominance Example
Co-dominance example
Quiz
Blood Typing
Project Work Time
Exit Question
Normal
Incomplete
Dominance
RR = red
 Rr = red
 rr = white
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RR = red
 Rr = mix
 rr = white
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RR = red
 RW = both at once
 WW = white
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CoDominance
Have you ever wondered…
Why do we have different types of
blood?
 Why could you die if you get a
transfusion of the wrong type of
blood?
 How can parents give birth to kids
who have a different blood type than
them?
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Remember
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Incomplete dominance is where the heterozygous
genotype is in between both the dominant and the
recessive genotype.
RR- red
Rr- pink
rr- white
Incomplete dominance
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In Jhaveri-land, the gene for loving biology is
incompletely dominant. A person with two dominant
alleles loves biology, a person with two recessive
alleles (GASP) does not love biology, and a person
with one of each only loves biology during the
school week.
If Two heterozygous people mate, what are the
genotype and phenotype probabilities?
Co-dominance
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The gene for fur color in googamoogas is codominant with both black and white. Find the
genotype and phenotype probabilities if a pure
black googamooga mates with a pure white
googamooga.
QUIZ TIME!!
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Put everything away, you have 15 minutes!
Kick butt, let’s see how much you’ve learned this
week!!
Blood Typing
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Sometimes there are more than two alleles
for a trait. The most important one for you to
learn about is… blood type!
Key Point #1:
 Blood
type has three alleles: IA, IB, and i.
IA and IB are co-dominant.
i is recessive.
Blood Types
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IA and IB are co-dominant
IA IA = Type A
IB IB = Type B
IA IB
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= Type AB
i is recessive
IA i = Type
IB i = Type
A
B
i i = Type O
Blood Typing
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Show the potential offspring between a mother who is
heterozygous for Type A blood and a father who is
heterozygous for Type B blood.
IA
i
GENOTYPES:
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IAi: 25%
IBi: 25%
IAIB: 25%
ii: 25%
IB
IA IB
IB i
i
IA i
ii
PHENOTYPES:
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Type A: 25%
Type B: 25%
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Type AB: 25%
Type O: 25%
GP 5
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Show the potential offspring between a father who is
homozygous for Type A blood and a mother who is
homozygous for Type B blood.
GENOTYPES:
PHENOTYPES:
GP 6
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Show the potential offspring between a mother who is Type O
blood and a father who is Type AB blood.
GENOTYPES:
PHENOTYPES:
Project Work Time
Exit Question
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If Chris Brown has Type AB blood and Rhianna has
Type A blood, what are genotype and phenotype
probabilities for their child.