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WorksheetsMULTIPLE ALLELES (Post-Viewing)
Total questions: 15
Worksheet time: 3mins
What are the possible phenotypes for human blood type?
A and B only
A, B and AB
A, B, AB and O
Which alleles are responsible for the phenotypic expression of ABO blood types?
IA and IB
IA , IB and IAIB
IA , IB and i
What determines blood types in humans?
antibodies
antigens
What antigen is present on the surface of Red Blood Cells of a Type A person?
A
B
D
Both A and B
What antigen is present on the surface of Red Blood Cells of a Type B person?
A
B
D
Both A and B
What antigen is present on the surface of Red Blood Cells of a Type AB person?
A
B
D
Both A and B
What antigen is present on the surface of Red Blood Cells of a Type O person?
A
O
none
Both A and B
Why can someone with type O blood donate blood to everyone?
Because type O blood does have antigens A and B.
Because it doesn't have A or B antigens that would cause it to be attacked by antibodies that will cause clotting or clumping.
Why can people with type AB accept blood from anyone?
Because they don't have any antigens at all.
Because they have already both the A and B antigens.
What pattern of non-Mendelian Inheritance is shown in ABO blood group?
Codominance
Incomplete Dominance
Multiple Alleles
X-linked
If a person has type B blood, the phenotype is B. What can the genotype be?
IAIA or IAi
IBIB or IBi
IAIB
ii
If a person has type A blood, the phenotype is A. What can the genotype be?
IAIA or IAi
IBIB or IBi
IAIB
ii
If a person has type AB blood, the phenotype is AB. What can the genotype be?
IAIA or IAi
IBIB or IBi
IAIB
ii
If a person has type O blood, the phenotype is O. What can the genotype be?
IAIA or IAi
IBIB or IBi
IAIB
ii
If the father has type A blood and the mother has type B blood, in order for baby Sylvester to have the genotype ii, his parents must be__
heterozygous
homozygous
