Transcript Blood Typing

Bell Ringer
1. Define: Codominance
2. Organisms that have two “identical alleles”
are said to be…. _________ or ________
3. When you flip a coin, what is the probability
it will come up heads?
4. What is an example of codominance?
Blood Type
Q: How can you tell if a vampire has a cold?
A: He starts coffin’!
Q: What’s a vampire’s favorite fruit?
A: A Neck-tarine!
Q: Why don’t vampires like mosquitoes?
A: Too much competition!
Q: What is a vampire’s favorite mode of transportation?
A: A blood vessel.
Phenotypes
Genotypes
1. Blood Type A =
IAIA or IAi
2. Blood Type B =
IBIB or IBi
3. Blood Type AB =
IAIB
4. Blood Type O =
ii
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Male: Homozygous B Blood
x
Female: Heterozygous A Blood
IA
i
IB
IAIB
IBi
IB
IAIB
Phenotypes Possibilities: AB and B
P Ratio: 1:1
Genotype Possibilities: IAIB and Ibi
IBi
G Ratio: 1:1
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Male: O Blood
x
Female: AB Blood
i
i
IA
IB
IAi
IBi
IAi
IBi
Phenotype Possibilities: A and B
P Ratio: 1:1
Genotype Possibilities: IAi and IBi
G Ratio: 1:1
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 Question:
If a boy has a blood type O and his sister
has blood type AB, what are the
genotypes and phenotypes of their
parents?
 Boy – Blood type O
 Girl – Blood type AB
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 Answer:
IA
IB
i
i
IAIB
Parents:
ii
Genotypes: IAi and IBi
Phenotypes: A and B
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Phenotype
(Blood Type
Genotype
Antigen on
Red Blood Cell
Safe Transfusions
To
From
Caucasians
African American
Hispanic
Asian
O+
37%
47%
53%
39%
O-
8%
4%
4%
1%
A+
33%
24%
29%
27%
A-
7%
2%
2%
0.5%
B+
9%
18%
9%
25%
B-
2%
1%
1%
0.4%
AB +
3%
4%
2%
7%
AB -
1%
0.3%
0.2%
0.1%
 Refers to the presence or absence of a specific antigen
on a blood cell.
 Positive: Has the antigen (Dominant)
 Negative: No antigen (Recessive)
 Positive people can receive positive or negative blood.
 Negative people can only receive negative blood.
Does Your Blood Type Reveal Your Personality?
TYPE O
You want to be a leader, and when you see something
you want, you keep striving until you achieve your goal. You are a
trend-setter, loyal, passionate, and self-confident. Your weaknesses
include vanity and jealously and a tendency to be too competitive.
TYPE A
You like harmony, peace and organization. You work
well with others, and are sensitive, patient and affectionate. Among
your weaknesses are stubbornness and an inability to relax.
TYPE B
You're a rugged individualist, who's straightforward
and likes to do things your own way. Creative and flexible, you adapt
easily to any situation. But your insistence on being independent can
sometimes go too far and become a weakness.
TYPE AB
Cool and controlled, you're generally well liked and
always put people at ease. You're a natural entertainer who's tactful
and fair. But you're standoffish, blunt, and have difficulty making
decisions.