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Biology
UTME / JAMB 2007
Reproduction in Plants & Animals
Solution
Which of the following is common to the mosquito, housefly and blackfly?
A
they undergo complete metamorphosis
B
they are parasites of man
C
their immature stages are aquatic
D
their adults have two pairs of wings
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
Blackflies, houseflies, and mosquitos undergo complete metamorphosis, meaning they go through distinct stages of egg, larva, pupa, and adult in their life cycle. This type of life cycle involves a distinct pupal stage where the organism significantly changes its form before emerging as an adult. E.g Insects like butterflies, beetles, bees, ants, and most flies, including houseflies and mosquitos, all exhibit complete metamorphosis.
Source: Myschool Past Questions Archive (Record #14606)
Biology
UTME / JAMB 2007
Variation & Genetics (Heredity)
Solution
An accurate identification of a rapist can be carried out by conducting a
A
RNA analysis
B
DNA analysis
C
blood group text
D
behavioural traits test
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
Each person's DNA is different, except for identical twins. This means that DNA can be used to accurately identify a perpetrator, similar to the way we use fingerprints. DNA evidence can be collected from blood, saliva, sweat, urine, skin tissue, and semen.
Biological evidence such as semen, blood, vaginal secretions, saliva, vaginal epithelial cells may be identified and genetically typed by a crime lab.
Source: Myschool Past Questions Archive (Record #14608)
Biology
UTME / JAMB 2007
Variation & Genetics (Heredity)
Solution
which of the following is true of cloning?
A
it is welcomed as an ethical and morally sound science
B
only one cell of the original organism is needed to initiate the process
C
the clone is similar to but not exactly like the original organism
D
it involves the asexual multiplication of the tissues of the original organism
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
Cloning is the process of creating a genetic copy of a cell or organism. The copy is called a clone. Cloning involves the asexual replication of the genetic makeup of an organism. This process can occur naturally or artificially. It's asexual because all the genes in the new organism are from the same source, rather than being a mixture of the genes from two individuals.
Source: Myschool Past Questions Archive (Record #14609)
Biology
WAEC / WASSCE 2007
Variety of Organisms & Classification of Living Things
A change in the environment of an organism is termed
A
sensitivity
B
impulse
C
response
D
stimulus
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 #20903)
Biology
WAEC / WASSCE 2007
Variety of Organisms & Classification of Living Things
Organisms that interbreed to produce fertile offspring belong to the same
A
class
B
family
C
species
D
order
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 #20904)
Biology
WAEC / WASSCE 2007
Reproduction in Plants & Animals
The transfer of ripe pollen grains from the anther to the stigma of the same flower is termed
A
fertilization
B
self-pollination
C
reproduction
D
conjugation
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 #20905)
Biology
WAEC / WASSCE 2007
Cell Structure, Organization & Cell Division
The hereditary material in a living organism is located inside the
A
protein wall
B
cytoplasm
C
nucleus
D
lysosome
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 #20906)
Biology
WAEC / WASSCE 2007
Variety of Organisms & Classification of Living Things
Respiration is an essential life process providing the living cells with
A
oxygen
B
sugars
C
energy
D
carbon dioxide
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 #20907)
Biology
WAEC / WASSCE 2007
Cell Structure, Organization & Cell Division
Solution
The organelle involved in the transport of substances within a cell is?
A
Golgi body
B
endoplasmic reticulum
C
ribosome
D
mitochondrion
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
The endoplasmic reticulum (ER) is primarily responsible for the transport of substances, such as proteins and lipids, within the cell. It consists of a network of membrane-enclosed sacs and tubules that act as an internal highway system.
Source: Myschool Past Questions Archive (Record #20908)
Biology
WAEC / WASSCE 2007
Cell & Its Environment (Diffusion, Osmosis & Transport)
Which of the following processes takes place when a plant cell is put in a hypotonic solution?
A
Water moves into the cell and the cell bursts
B
Water leaves the cell and the cell becomes flabby
C
Water moves into the cell and the cell becomes turgid
D
The cell becomes plasmolysed
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 #20909)
Biology
WAEC / WASSCE 2007
Variation & Genetics (Heredity)
The dominant stage in the life cycle of a fern is the
A
antheridium
B
gametophyte
C
prothallus
D
sporophyte
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 #20910)
Biology
WAEC / WASSCE 2007
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
Yeast is added to the dough during the preparation of bread because it produces
A
ethanol
B
heat
C
carbon dioxide
D
carbohydrate
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 #20911)
Biology
WAEC / WASSCE 2007
Cell Structure, Organization & Cell Division
Growth includes the following processes except
A
differentiation
B
enlargement
C
mitosis
D
meiosis
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 #20912)
Biology
WAEC / WASSCE 2007
Reproduction in Plants & Animals
Which of the following processes is a form of sexual reproduction?
A
Budding by yeast cells
B
Conjugation in Spirogyra
C
Binary fission in Amoeba
D
Rhizome production by ginger
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 #20913)
Biology
WAEC / WASSCE 2007
Variety of Organisms & Classification of Living Things
The fine adjustment of the light microscope is used to
A
admit more light into the microscope
B
focus the object under low power
C
focus the object under high power
D
raise the stage upwards
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 #20914)