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Blood Types FS Week 2

blood types worksheet

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English 4

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Studocu University - USA

Academic year: 2022/2023

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Understanding Human Blood Types Using Punnett

Squares Worksheet

DIRECTIONS: Use the presentation and charts below to help answer the questions related to

blood phenotypes and genotypes.

1) In the table below, fill in the appropriate genotypes for each

blood type.

Phenotype Genotype

A iA , i, i^A

B i^B , i

AB i^A , i^B

O i i

Use the table below to answer the following questions.

Blood Type

(Phenotype)

Genotyp

e

Can donate blood

to:

Can receive blood

from:

O

ii A, B, AB and

O

(universal donor)

O

AB I

A

I

B

O, AB

A, B, AB and O

(universal receiver)

A

IAIA or

IAi

AB, A O, A

B I

B

I

B

or

I

B

i

AB, B O, B

Table 1

2) Write the genotype for each person based on the description:

a. Homozygous for the <B= allele BB

b. Heterozygous for the <A= allele Aa

c. Type O ii__

d. Type <A= and had a type <O= parent AO

e. Type <AB= iAiB

f. Blood can be donated to anybody ii

g. Can only get blood from a type <O= donor ii_

3) A man is homozygous for the type B allele and a woman is type <O.=

What are all the possible blood types of their baby?

MOTHER’S BLOOD TYPE

o o

B Bo Bo

FATHER’S BLOOD TYPE

4) A man who has type B blood (genotype: Bb) and is married to

a woman with type O blood. What blood type will their

children have? Type O

MOTHER’S BLOOD TYPE

o o

B Bo Bo

b bo bo

FATHER’S BLOOD TYPE

8) Mrs. Clink is type <A= and Mr. Clink is type <O.= They have three

children named Matthew, Mark, and Luke. Mark is type <O,=

Matthew is type <A,= and Luke is type <AB.= Based on this

information: Luke is adopted

a) Mr. Clink must have the genotype ii

b) Mrs. Clink must have the genotype Ai because she__

has blood type A

c) Luke cannot be the child of these parents because neither parent has

the allele _B.

9) Two parents think their baby was switched at the hospital. Its 1968,

so DNA fingerprinting technology does not exist yet. The mother

has blood type <O,= the father has blood type <AB,= and the baby

has blood type <B.=

a) Mother’s genotype: ii_

b) Father’s genotype: i^A, i^B_

c) Baby’s genotype: i^B or i

d) Punnett square showing all possible genotypes for children

produced by this couple

o o

A Ao ao

B Bo Bo

e) Was the baby switched? yes_

10) Two other parents think their baby was switched at the hospital.

The mother has blood type <A,= the father has blood type <B,= and

the baby has blood type <AB.=

a) Mother’s genotype: i^A_ or i__

b) Father’s genotype: i^B_ or i

c) Baby’s genotype: i^A,i^B__

d) Punnett square that shows the baby’s genotype as a possibility:

A a

B AB aB

b Ab ab

e) Was the baby switched? no

11) Based on the information in this table, which man could not be

the father of the baby? State who is the father and justify your

answer with a Punnett square. Caleb is the father

Name Blood Type

Mother Type A

Baby Type B

Sam Type O

George Type AB

Walter Type A

Caleb Type B

A a

B AB aB

b Ab ab

12) Based on the information in this table, which man could not be

the father of the baby? State who is the father and justify your

answer with a Punnett square. Cade is the father.

b. What are the possible blood types of a child whose parents are

both heterozygous for "B" blood type?

MOTHER’S BLOOD TYPE

B b

B BB Bb

b Bb bb

FATHER’S BLOOD TYPE

c. Determine the possible genotypes & phenotypes with respect to

blood type for a couple who's blood types are homozygous A (Father) &

heterozygous B (Mother).

MOTHER’S BLOOD TYPE

A A

B AB AB

b Ab Ab

FATHER’S BLOOD TYPE

15) Jill is blood Type O. She has two older brothers with blood types A

& B. What are the genotypes of her parents with respect to this

trait?

MOTHER’S BLOOD TYPE

B o

A AB Ao

B BB Bo

FATHER’S BLOOD

16) A test was done to determine the biological father of a child. The

child's blood is Type A and the mother's is B. Possible Father #1 has

a blood type of O & Possible Father #2 has blood type AB.

a. Who is the biological father? Justify your answer with a Punnett

Squares. possible father

MOTHER’S BLOOD TYPE

B B

O BO BO

o Bo Bo

FATHER’S BLOOD TYPE

MOTHER’S BLOOD TYPE

B B

A AB AB

B BB BB

FATHER’S BLOOD TYPE

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