Question Library
Browse, filter, and study verified past examination questions with step-by-step mathematical reasoning.
Searching 18,000+ Questions...
Sifting topics, KaTeX formulas & verified solutions
Showing 7906–7920 of 14893 verified questions
Sort by:
Biology
UTME / JAMB 2003
Nervous, Hormonal Coordination & Sense Organs
Solution
The response of plants to external stimuli in a non-directional manner is known as
A
Tactic movement
B
Phototropism
C
Geotropism
D
Nastic movement
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
Plant movements that are independent of the direction of the stimulus or that are caused by non-directional stimuli are called nastic movements or nasties
Source: Myschool Past Questions Archive (Record #7239)
Biology
UTME / JAMB 2003
Nervous, Hormonal Coordination & Sense Organs
The most important hormone that induces the ripening of fruit is
A
Ethylene
B
Indole acetic acid
C
Gibberallin
D
Cytokinin
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 #7240)
Biology
UTME / JAMB 2003
Population Ecology, Habitats & Conservation
A density-dependent factor that regulates the population size of organism is
A
Disease
B
Sudden flood
C
Drought
D
Fire outbreak
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 #7241)
Biology
UTME / JAMB 2003
Variety of Organisms & Classification of Living Things
One example of fossil fuels is
A
Limestone
B
Coral
C
Coal
D
Firewood
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 #7242)
Biology
UTME / JAMB 2003
Population Ecology, Habitats & Conservation
The most effective method of dealing with non-biodegradable pollutant is by
A
Dumping
B
Recycling
C
Incineration
D
Burying
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 #7243)
Biology
UTME / JAMB 2003
Basic Ecological Concepts, Ecosystems & Biomes
The correct sequence of biomes from northern to southern Nigeria is
A
Guinea savanna → sudan savanna → tropical rain forest → sahel savanna → estuarine
B
Estuarine → tropical rain forest → guinea savanna → sahel savanna
C
Sahel savanna → tropical rain forest → estuarine → guinea savanna
D
Sahel savanna → sudan savanna → guinea savanna → tropical rain forest → estuarine
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #7269)
Biology
UTME / JAMB 2003
Variety of Organisms & Classification of Living Things
Mycorriza is an associationn between fungi and
A
protozoans
B
Roots of higher plants
C
Bacteria
D
Filamentous algae
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 #7271)
Biology
UTME / JAMB 2003
Variety of Organisms & Classification of Living Things
A limited factor in a plant population near a chemical factory is likely to be
A
Light
B
Humidity
C
wind
D
pH
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #7273)
Biology
UTME / JAMB 2003
Variety of Organisms & Classification of Living Things
Soil fertility can best be conserved by the activities of
A
Earthworm
B
Man
C
Rodent
D
Microbes
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #7274)
Biology
UTME / JAMB 2003
Population Ecology, Habitats & Conservation
The pioneer organisms in ecological succession are usually the
A
mosses
B
lichens
C
ferns
D
algae
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 #7275)
Biology
UTME / JAMB 2003
Variation & Genetics (Heredity)
If a DNA strand has a base sequence TCA, its complementary strand must be
A
ATG
B
TAG
C
GAT
D
AGT
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #7277)
Biology
UTME / JAMB 2003
Variation & Genetics (Heredity)
Solution
A man and his wife are both heterozyous for the sickle-cell trait. The likely percentage of their offspring that will be either carriers or sicklers is
A
75%
B
50%
C
25%
D
100%
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
An heterozygote for sickle-cell anaemia = AS
Crossing two AS persons, we have one AA, two AS and one SS.
\(\therefore\) The probability that the children are either carriers or sicklers = \(\frac{3}{4}\)
= 75%
Source: Myschool Past Questions Archive (Record #7278)
Biology
UTME / JAMB 2003
Variation & Genetics (Heredity)
If the pair of alleles for baldness is given as Bb, a female carrier will be denoted by
A
XbYB
B
XBXB
C
XBY
D
XBbXb
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #7282)
Biology
UTME / JAMB 2003
Variation & Genetics (Heredity)
Solution
An organism that has been extensively used to test the chromosomes theory of heredity is
A
Drosophila melanogaster
B
Muscar domestica
C
Zea mays
D
Homo sapiens
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
Drosophila melanogaster has been extensively used to test the chromosome theory of heredity. It was instrumental in the early development of genetics, with Thomas Hunt Morgan and his team at Columbia University using it to provide strong evidence for the theory. This work led to the formulation of the chromosome theory, which states that genes are located on chromosomes and that inheritance patterns can be explained by the behavior of chromosomes during meiosis.
Drosophila have a short life cycle, allowing for quick observation of multiple generations, crucial for genetic analysis. They produce many offspring, making it easier to observe patterns of inheritance. They can be easily bred and maintained in a laboratory setting.
Drosophila also possess polytene chromosomes, which are large and visible under a microscope, facilitating the mapping of genes. They readily develop mutations, allowing researchers to study the effects of altered genes.
Source: Myschool Past Questions Archive (Record #7450)
Biology
UTME / JAMB 2003
Variation & Genetics (Heredity)
A feature associated with the Y-chromosome in human is
A
long eyelashes
B
prominent fingernails
C
facial hairs
D
enlarged breast
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 #7451)