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Which of the following animals exhibits territoriality?
ARabbit
BEarthworm
CLizard
DToad
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Question 2
waec2010
Which of the following statements reflects the mechanism of natural selection?
AThere are variations within every species
BIndividuals of every species are genetically identical
CNo organism in a species dies before sexual maturity
DOrganisms with selective advantages are less likely to survive
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Question 3
waec2010
In evolution, analogous structures are significant because they show
Aphysiological diversity
Bfunctional diversity
Cgenetic diversity
Dstructural diversity
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Question 4
waec2010
The importance of courtship in animals includes the following except
Aensuring that the female chooses the right male species
Barousing both male and female partners
Cprotection of territory
Dto coincide with the ovulation period and ensure fertilization
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Question 5
waec2010
The percentage probability that a normal male married to a carrier woman would have a haemophilic male child is
A35%.
B50%
C75%
D100%.
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Question 6
waec2010
What would be the phenotypic ratio of the offspring of a cross between a heterozygous dominant parent and a double recessive parent?
A1 : 2: 1
B1 : 1
C3 :1
D2 : 1
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Question 7
waec2010
Mr. Andrew, his wife and child belong to blood groups A, B and O respectively. The genotypes of both parents are
AIA IO and IB IB
BIA IA and IB IB
CIA IB and IA IO
DIA IO and IB IO.
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Question 8
waec2010
Which of the following statements is correct about the structure of a chromosome? A chromosome consists of
Atwo chromatids joined at the centromere
BTwo chromatids joined at the spindle
CTwo chromatin threads joined at the centrioles
Dthread-like structures not joined together
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Question 9
waec2010
In a family of eight (8) all the children are girls Which of the following reasons correctly explains this?
AThe woman cannot produce male children
BThe man has a low sperm count
CThe Y component of the man’s sex chromosome was always involved
DThe X component of the man’s sex chromosome was always involved.
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Question 10
waec2010
In artificial selection, individuals without desirable traits may be prevented from mating by
Aoutbreeding
Bsterilization
Cinbreeding
Dgenetic engineering
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Question 11
waec2010
An example of a saprophytic relationship is a / an
Avulture feeding on decaying meat
Bmushroom growing on decaying vegetation
Cboy eating stale bread
Dearthworm feeding on decaying vegetation.
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Question 12
waec2010
Which of the following statements about heredity is not true? In heredity the traits are
Acarried by genes
Bcontained in the ovum and sperm
Calways transmitted by one parent
Dtransmitted from parents to offspring
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Question 13
waec2010
A man heterozygous for albino gene marries a woman who is also heterozygous for the gene. Both have normal skin colour. The probability that they will have an albino child is
A1/3
B1/4
C4/4
D2/4
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Question 14
waec2010
A person with blood group, O can be given blood from persons who have blood belonging to
Agroup O only
Bgroup A only
Cgroups A and O
Dgroups A, B and O
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Question 15
waec2010
Fingerprints are useful in crime detection because
Athe police have sophisticated fingerprint machines
Bthieves may leave their prints at the scene of a crime
Cno two people have the same fingerprint
Dfingerprints are easy to make
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Question 16
waec2010
The parameters of size, height, weight and colour in a population of living things are examples of
Aenvironmental variation
Bnon-heritable variations
Ccontinuous variations
Ddiscontinuous variations
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Question 17
waec2010
Which of the following is an example of variation?
ABlood
BTongue rolling
CReproduction
DGrowth
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Question 18
waec2010
The main reason for the conservation of wildlife is to
Acreate national parks for recreation
Bmaintain ecological balance in communities
Cprevent hunters from being 'cruel to animals
Dsave some species from extinction.
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Question 19
waec2010
The following effects are associated with deforestation except
