Transcript Blood Typing

Blood Typing

Catalyst:
 In
camels, having a large hump is dominant over
having a small hump.
 Create a Punnett square to show the potential
offspring of a heterozygous camel and a camel
with a small hump.
 Make sure to list the genotype and phenotype
percentages!
Write in complete sentences!
Don’t talk during the Catalyst!
Have you ever wondered…
Why we have different types of
blood?
 Why could you die if you get a
transfusion of the wrong type of
blood?

Objectives
By the end of today, SWBAT…
 Identify blood type genotypes
and phenotypes
 Determine the correct type of
blood to transfuse into a patient
Agenda
Catalyst/HW Review
 Quiz
 Types of blood
 Are you a positive person?
 Whiteboards practice
 VIDEO GAME PRACTICE
 Exit Question

Catalyst/Homework Review
Blood Typing


Sometimes there are more than two alleles
for a trait. The most important case for you to
learn about is… blood type!
Key Point #1: Blood type has three alleles: IA,
IB, and i.
 IA
and IB are both dominant (co-dominant).
 i is recessive.
Types of blood

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
Since IA and IB are
both dominant,
they are
expressed at the
SAME TIME
Antigens and Antibodies

Key Point #2: Antigens determine blood
type. Antibodies attack antigens.
 If
you receive the wrong type of blood, your antibodies
will attack the new antigens, causing blood cells to
clump and crack.
Type O
A blood
B
AB
blood
bloodhas
has
hasBA
no
A
and B antigens,
antigens,
and A
B and
and
antibodies.
no
B
antibodies
antibodies
Positive or Negative

Key Point #3: Rhesus factor determines if your
blood type is positive or negative
 If
you have Rh factor, your blood is positive
 If you lack the Rh factor, your blood is negative
Whiteboards

For each problem…
Determine
the blood type
Determine if the person can receive the
transfusion
If the person CANNOT receive the
transfusion, explain what will happen if
the wrong type blood is given to them
It’s time to pretend that we’re…
Guided Practice

Bob Dylan’s blood is IAIA, and lacks Rh
factor.
 What
type blood does he have?
 Can he receive Type B blood?
 Can he receive Type O blood?
Guided Practice

D’Angelo’s blood is IBi, and has Rh factor.
 What
type blood does he have?
 Can he receive Type AB blood?
 Can he receive Type B blood?
Guided Practice

Goapele’s blood is IAIB, and lacks Rh
factor.
 What
type blood does she have?
 Can she receive Type B Rh- blood?
 Can she receive Type A Rh+ blood?
Guided Practice

Dave Grohl’s blood is ii, and has Rh
factor.
 What
type blood does he have?
 Can he receive Type O Rh+ blood?
 Can he receive Type AB Rh- blood?
Guided Practice

Kid Cudi’s blood is IAIA, and lacks Rh
factor.
 What
type blood does he have?
 Can he receive Type O Rh- blood?
 Can he receive Type AB Rh+ blood?
Guided Practice

Nujabes’s blood is IBi, and has Rh factor.
 What
type blood does he have?
 Can he receive Type B Rh- blood?
 Can he receive Type A Rh+ blood?
Guided Practice

Drake’s blood is IAIB, and lacks Rh factor.
 What
type blood does he have?
 Can he receive Type A Rh- blood?
 Can he receive Type B Rh+ blood?
Guided Practice

Lady Gaga’s blood is ii, and has Rh
factor.
 What
type blood does she have?
 Can she receive Type AB Rh+ blood?
 Can she receive Type O Rh- blood?
SICK VIDEO GAME
http://nobelprize.org/e
ducational_games/medic
ine/landsteiner/landstein
er.html

Exit Question

Lil’ Wayne’s blood is IAi, and has Rh
factor.
 What
type blood does he have?
 Can he receive Type A Rh- blood?
 What will happen if he donates blood to
someone who is Type AB Rh-?
Write in complete sentences!
Don’t talk during the Exit Question!