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 ReviewQuizBlood Type Punnett SquaresMAURY POVICH!!! Independent work timeExit 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 A IB i = Type 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?!?!?!

iiIBi

IAiIAIBIA

IB

i

i

IBiIAi

IAIBIAIA

i

IA

IA IB

RichardAdam

Katie

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.

IBiIBi

IAiIAiIANick could not have a child with Samantha who has AB blood!!!!!

IA

IB

Sam

i i

Nick

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-in-law, 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?!?!?!

IBIBIAIB

IBIBIAIBIB

IA

IB

IB

IBiIAIB

IBiIAIB

IB

IB

IA i

JonnyThomas

Nesha

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 mother is heterozygous for Type A

iiIAi

IAiIAIAIA

IA

i

i

iiIBi

IAiIAIB

i

IA

IB i

SimonTerrance

Mother

MAURY CAN’T FIGURE THIS ONE

OUT!!!

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!