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Biology
UTME / JAMB 2010
Population Ecology, Habitats & Conservation
The average number of individuals of a species per unit area of the habitat is the?
A
population density
B
population frequency
C
population size
D
population distribution
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option A.
Source: Myschool Past Questions Archive (Record #29614)
Biology
UTME / JAMB 2010
Growth, Micro-organisms & Public Health
The vector for yellow fever is?
A
Aedes mosquito
B
Anopheles mosquito
C
tsetse fly
D
blackfly
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option A.
Source: Myschool Past Questions Archive (Record #29617)
Biology
UTME / JAMB 2010
Digestive System & Feeding Mechanisms
Solution
The loss of soil through erosion can be reduced by?
A
watering
B
crop rotation
C
manuring
D
irrigation
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
Advantages of Crop Rotation
Increases Soil Fertility.
Increases Crop Yield.
Increases Soil Nutrients.
Reduces Soil Erosion.
Limits the Concentration of Pests and Diseases.
Reduces the Stress of Weeds.
Improves the Soil Structure.
Reduces Pollution.
Source: Myschool Past Questions Archive (Record #29618)
Biology
UTME / JAMB 2010
Growth, Micro-organisms & Public Health
The protozoan plasmodium falciparum is transmitted by?
A
female Anopheles mosquitoes
B
female Aedes mosquitoes
C
female Culex mosquitoes
D
Female blackfly
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option A.
Source: Myschool Past Questions Archive (Record #29619)
Biology
UTME / JAMB 2010
Variation & Genetics (Heredity)
A dilute solution of phenylthiocarbamide tastes bitter to some people and is tasteless to others. This is an example of?
A
taste bud variation
B
discontinuous variation
C
morphological variation
D
continuous variation
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option B.
Source: Myschool Past Questions Archive (Record #29620)
Biology
UTME / JAMB 2010
Nervous, Hormonal Coordination & Sense Organs
Thyroxine and adrenalin are examples of hormones which control?
A
blood grouping
B
tongue rolling
C
behavioural patterns
D
colour variation
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #29621)
Biology
UTME / JAMB 2010
Variation & Genetics (Heredity)
Solution
A pair of genes that control a trait is referred to as?
A
an allele
B
recessive
C
dominant
D
a hybrid
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
Alleles contribute to the organism's phenotype, which is the outward appearance of the organism. Some alleles are dominant or recessive. When an organism is heterozygous at a specific locus and carries one dominant and one recessive allele, the organism will express the dominant phenotype
Source: Myschool Past Questions Archive (Record #29622)
Biology
UTME / JAMB 2010
Cell Structure, Organization & Cell Division
Solution
The chromosome number of a cell before and after the process of meiosis is conventionally represented as?
A
2n → 2n
B
n → n
C
n → 2n
D
2n → n
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
What are the major similarities and differences between mitosis and meiosis?
Mitosis produces two cells from one parent using one division event. But meiosis produces four new child cells with two divisions, each of which has half the genetic material of its parent. Mitosis takes place all over the body, while meiosis only takes place in the sex organs and produces sex cells
Source: Myschool Past Questions Archive (Record #29623)
Biology
UTME / JAMB 2010
Variation & Genetics (Heredity)
Solution
At what stage in the life history of a mammal is the sex of an individual set?
A
at adolescence
B
at puberty
C
at birth
D
at conception
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
The sex of a baby is determined by its chromosome make-up at conception.
Source: Myschool Past Questions Archive (Record #29624)
Biology
UTME / JAMB 2010
Adaptation & Evolution
Solution
The main distinguishing features between the soldier termite and other members of the caste are the?
A
presence of wings, possession of a small head and large thorax
B
presence of wings, possession of a large thorax and a small head
C
absence of wings, possession of strong mandibles and a large head
D
absence of wings,possession of big head and the absence of mandible
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
Soldier termites have distinctively shaped heads and are typically bigger than workers. Their protruding mandibles help them protect their colonies. Soldiers have elongated bodies and are pale red, light brown, or white.
Source: Myschool Past Questions Archive (Record #29625)
Biology
UTME / JAMB 2010
Adaptation & Evolution
Solution
The flippers of a whale and the fins of a fish are examples of?
A
divergent evolution
B
coevolution
C
continous variation
D
convergent evolution
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
In evolutionary biology, convergent evolution is defined as the process whereby distantly related organisms independently evolve similar traits to adapt to similar necessities.
Source: Myschool Past Questions Archive (Record #29626)
Biology
UTME / JAMB 2010
Variation & Genetics (Heredity)
Solution
If both parents are heterozygous for a trait, the probability that an offspring will be recessive for that trait is?
A
\(\frac{1}{2}\)
B
\(\frac{3}{4}\)
C
\(\frac{1}{4}\)
D
1
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
The expected genotype ratio when two heterozygotes are crossed is 1 (homozygous dominant) : 2 (heterozygous) : 1 (homozygous recessive).
Source: Myschool Past Questions Archive (Record #29627)
Biology
UTME / JAMB 2010
Variety of Organisms & Classification of Living Things
Diagram
Use the diagram above to answer this question.In which plantation are all the trees between the height of 2-4m?
Attached Figure / Diagram
A
lll
B
ll
C
l
D
lV
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option A.
Source: Myschool Past Questions Archive (Record #31192)
Biology
UTME / JAMB 2010
Variety of Organisms & Classification of Living Things
Diagram
Use the diagram above to answer this question.Which of the following is a true feature of plantation ll?
Attached Figure / Diagram
A
it has the highest number of trees of about 2m high.
B
it has highest number of trees
C
it has the highest number of tall trees
D
the height of all its trees range between 2m and 6m
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option A.
Source: Myschool Past Questions Archive (Record #31193)
Biology
UTME / JAMB 2010
Supporting Tissues & Skeletal System
Diagram
Solution
Use the diagram above to answer this question.The movement of material in the xylem and phloem tissues of the plant are represented by the arrows labeled?
Attached Figure / Diagram
A
lV and III respectively
B
ll and l respectively
C
l and ll respectively
D
l and lll respectively
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
xylem, plant vascular tissue that conveys water and dissolved minerals from the roots to the rest of the plant and also provides physical support.
Phloem is a living tissue in vascular plants which conducts the soluble organic compounds synthesized during photosynthesis downwards from the leaves.
Source: Myschool Past Questions Archive (Record #31196)