2011 - JAMB Biology Past Questions and Answers - page 5
41
The number of alleles controlling blood groups in humans
A
3
B
4
C
5
D
2
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42
During blood transfusion, agglutination may occur as a result of the reaction between
A
contrasting antigens and antibodies
B
two different antigens
C
two different antibodies
D
similar antigens and antibodies
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43
The fallacy in Lamarck's evolutionary theory was the assumption that
A
traits are acquired through disuse of body parts
B
acquried traits are heritable
C
acquired traits are seldom formed
D
traits are acquired through the use of body parts
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44
The bright coloured eye spots on the wings of moth are an example of
A
warning colouration
B
disruptive colouration
C
crypsis
D
mimicry
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45
The wings of a bat and those of a bird are examples of
A
convergent evolution
B
continuous variation
C
coevolution
D
divergent evolution
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46
Which of the organisms represented are notable agricultural pests?
A
ll and IV
B
l and IV
C
ll and lll
D
l and lll
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47
The gas evolved in the process is
A
carbon (IV) oxide
B
nitrogen
C
oxygen
D
carbon (II) oxide
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48
The experimental set-up above is used to demonstrate the process of
A
diffusion
B
photosynthesis
C
fermentation
D
plasmolysis
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49
A
it transmit water borne disease to humans
B
it is distructive to farm crops
C
its faeces pollutes drinkng water
D
it helps in the control of mosquito larvae
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50
A
sleeping sickness
B
river blindness
C
cholera
D
elephantiasis
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