Biology Past Questions

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50 questions JAMB 2572 WAEC 2099 NECO 351 CUSTOM 10
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Past Questions

50 questions
Question 1 of 20 50 total questions
Question 1
jamb 1990

In a saprophyte, sex organs are produced in the

AGamotrophyte
BRhizoid
CProtonema
DSporopyte
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Question 2
jamb 1990
In a reflex action, impulse flows from
A1 to 2
B2 to 1
C4 to 1
D4 to 2
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Question 3
jamb 1990
All the cell bodies in the spinal cord are found in
A1
B2
C3
D4
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Question 4
jamb 1990

If the blood is too concentrated, more water is absorbed from?

A5
B4
C3
D1
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Question 5
jamb 1990
Which structure is the glomerulus?
A5
B3
C2
D1
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Question 6
jamb 1990
Free nitrogen is released to the atmosphere by
ANitrogen-fixing bacteria
Bnitrifying bacteria
Cdenitrifying bacteria
Dsaprophytic bacteria
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Question 7
jamb 1990

What do bacteria in root nodules derive from the host plant?

AProtection and minerals
BWater and minerals
CCarbonhydrates and water
DProtection and carbohydrates
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Question 8
jamb 1990

An acidic soil can be improved upon by

Asedimentation
Bleaching
Cflocculation
Dwatering
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Question 9
jamb 1990
Which of the following constitute pollution?
ADroppings from birds
Bloud disco sound
CA pack of cigarettes
DRefuse in an incinerator
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Question 10
jamb 1990
Which set of disease is spread mainly by insect vectors?
ACholera, tenia and gonorrhoea
BPoliomyelitis, tuberculosis and syphilis
CCholera, malaria and tuberculosis
DMalaria, cholera and river blindness
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Question 11
jamb 1990
Physiological adaptation to very dry condition in animals is called
Ahibernation
Baestivation
Crejuvenation
Dxeromorphism
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Question 12
jamb 1990
The salinity of a brackish enviroment
Aincreases immediately after rain
Bincrease at the end of rainy season
CDecrease with increase in micro-organisms
Dincrease during dry season
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Question 13
jamb 1990
which of the organisms will have the lowest population in an ecosystem?
AHawk
BCowpea
CPraying mantis
DMouse
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Question 14
jamb 1990
Which of the following is an omnivore?
APraying mantis
BHawk
CMouse
DGrasshopper
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Question 15
jamb 1990
In a savanna ecosystem the abiotic factors include
Alegumes, temperature and sandy soil
Bwater, temperature and soil
Cminerals, oxygen and reptiles
Dwater, soil and grasses
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Question 16
jamb 1990

Haemophilia results from the mutation of the genes

Ain the sex chromosome
Bwhich control skin colour
Cwhich control the mechanism for blood-clotting
Dwhich control the formation of haemoglobin
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Question 17
jamb 1990

An individual in the AB blood group is a universal recipient for blood donation because

Aall the red blood cells do not carry antigen
Ball the red blood cells carry antigen
Call the red blood cells carry antigen
Dthere are no anti-A and anti-B antibodies in the serum
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Question 18
jamb 1990

What stage during cell division is represented in the figure above?

AProphase
BMetaphase
CAnaphase
DTelophase
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Question 19
jamb 1990
What will be the result of the first filial generation (F1) and the second filial generation (F2) of a mono-hybrid cross between pure line normal-winged Drosophilia flies and pure line short-winged flies, if the gene for the normal wing is dominant?
AF1 flies all short-winged and F2 flies all normal-winged
BF1 flies all normal and F2 flies all short-winged
CF1 flies all short-winged and three-quarters of F2 flies are short-winged
DF1 flies all normal-winged and three-quarters of F2 flies are normal-winged
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Question 20
jamb 1990

In organism where the 2nd number of chromosomes is 16, the number of chromosomes in each gamete will be

A32
B16
C8
D4
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