Transcript Blood Typing

Blood Typing

Beyonce’s blood is IAIB, and has Rh factor.
 What
type blood does she have?
 Can she receive Type A Rh- blood?
 Can she receive Type B Rh+ blood?
 Can she give blood to someone who is Type
AB Rh-?
Write in complete sentences!
Don’t talk during the Catalyst!
Have you ever wondered…

How parents can give birth to kids
who have a different blood type than
them?
Objectives
By the end of today, SWBAT…
 Create and analyze Punnett
squares for blood typing
Agenda
Catalyst/Homework Review
 Quiz
 Blood Type Punnett Squares
 MAURY POVICH!!!
 Independent work time
 Exit Question

Catalyst/Homework Review
Quiz!

Put away your binders…
Turn
your desks into rows…
And
let’s ace that quiz!
You have 20 minutes
Remember…

IA and IB are co-dominant
IA IA = Type A
IB IB = Type B
IA IB

= Type AB
i is recessive
IA i = Type
IB i = Type
A
B
i i = Type O
Teacher Models 1

Show the potential offspring between a mother who has Type
AB blood and a father who has Type O blood.
GENOTYPES:
PHENOTYPES:
Teacher Models 2

Show the potential offspring between a mother who is
heterozygous for Type A blood and a father who is
heterozygous for Type B blood.
GENOTYPES:
PHENOTYPES:
GP 1

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 2

Show the potential offspring between a mother who is Type O
blood and a father who is Type AB blood.
GENOTYPES:
PHENOTYPES:
GP 3

Show the potential offspring between a mother who is Type AB
blood and a father who is heterozygous for Type B blood.
GENOTYPES:
PHENOTYPES:
Why We Care…

Today, we can use paternity tests to analyze a
man’s DNA. If it matches the DNA of a child, this
proves that they are father and son.
 But
it wasn’t always this way.
 Back
in the day, scientists used BLOOD TYPES
and PUNNETT SQUARES to figure out…
WHO DAT BABY DADDY?
Scenario 1



Katie is heterozygous for Type A blood (IAi). Her
baby is type O (ii). She is not sure if Richard, her
husband, or Adam, her husband’s best friend, is the
father…
Richard has type AB blood (IA IB )
Adam has type B blood (IBi)
Katie’s baby is type O (ii). Who is the
father?!?!?!
Adam
IA
Richard
IB
i
I AI B
I Ai
IBi
ii
IA
IB
IA
I AI A
I AI B
i
I Ai
IBi
Katie
i
Scenario 2




Samantha has type AB blood and so does her
baby. She is not sure whether Nick or Ron is the
father of her baby….
Nick has type O blood
Ron has type B blood
Who dat baby daddy is? Use Punnett Squares to
prove it.
Samantha has type AB blood and so
does her baby.
Nick
i
i
IA
I Ai
I Ai
IB
IBi
IBi
Sam
Nick could not
have a child
with Samantha
who has AB
blood!!!!!
Scenario 3



Nesha is homozygous for Type B blood. Her baby is
heterozygous for Type B blood. She is not sure if
Thomas, her personal trainer, or Jonny, her brother-inlaw, is the father…
Thomas has Type AB blood
Jonny is heterozygous for Type A blood
Nesha’s baby is heterozygous for Type
B blood. Who is the father?!?!?!
Thomas
IB
Jonny
IA
IB
I AI B
IBIB
I AI B
IBIB
IA
i
IB
I AI B
IBi
IB
I AI B
IBi
Nesha
IB
Scenario 4


Jackson is heterozygous for Type B blood, and his
mother has Type AB blood. His father has Type AB
blood, also.
What does this mean?! (Prove your answer with a
Punnett Square!)
JACKSON IS ADOPTED (OH
SNAP!!!)
Scenario 5



Lizzeh has Type O blood, and her mother is
heterozygous for Type A blood. She isn’t sure who
her father is.
Terrance, her mother’s pool boy, is heterozygous for
Type A blood.
Simon, her grocery clerk at Rouse’s, is heterozygous
for Type B blood.
Lizzeh
has
Type
O
blood,
and
her
MAURY CAN’T FIGURE THIS
mother is heterozygous for Type A
ONE OUT!!! 
Terrance
IA
Simon
IA
i
I AI A
I Ai
I Ai
ii
IB
i
IA
I AI B
I Ai
i
IBi
ii
Mother
i
Independent Practice

Work on the extra credit assignment or homework
Exit Question

Rhianna has heterozygous Type B blood,
and Drake has Type AB blood.
 Create
a Punnett Square to show their
potential offspring.
 List the genotype AND phenotype
percentages.
Write in complete sentences!
Don’t talk during the Exit Question!