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Biology
UTME / JAMB 2018
Cell Structure, Organization & Cell Division
The immediate product of meiosis in flowering plants is the
A
sporophyte
B
gametophyte
C
zygote
D
endosperm
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 #47192)
Biology
UTME / JAMB 2018
Cell Structure, Organization & Cell Division
DNA in eukaryotic cells is contained in the
A
central vacuole
B
nucleus
C
lysosome
D
golgi body
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 #47193)
Biology
UTME / JAMB 2018
Variation & Genetics (Heredity)
A woman who is heterozygous for the disease haemophilia marries a man who is haemophilic. What percentage of their offspring would have the disease?
A
0%
B
25%
C
50%
D
75%
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 #47194)
Biology
UTME / JAMB 2018
Cell Structure, Organization & Cell Division
Solution
Cytokinesis of mitosis is a process that ensures that
A
each daughter cell gets the necessary organelles
B
there is distribution of a complete set of genes into each daughter cell
C
daughter cell inherit new genetic combinations
D
worn out organelles are excluded from daughter cells
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
The main purpose of cytokinesis in mitosis is to physically divide the cytoplasm of a single cell into two separate daughter cells, effectively completing the cell division process by ensuring each new cell receives a complete set of organelles and genetic material after the nucleus has divided during mitosis.
Source: Myschool Past Questions Archive (Record #47195)
Biology
UTME / JAMB 2018
Variety of Organisms & Classification of Living Things
An animal which is active during the day is known as a
A
nocturnal animal
B
diurnal animal
C
terrestrial animal
D
homortacmic animal
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 #47196)
Biology
UTME / JAMB 2018
Adaptation & Evolution
Solution
Evidence of evolution include the following except?
A
fossil records
B
comparative anatomy
C
molecular records
D
geographical distribution of organisms
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
Some materials present geographical distribution of organisms as an evidence of evolution while some do not.
Source: Myschool Past Questions Archive (Record #47197)
Biology
UTME / JAMB 2018
Reproduction in Plants & Animals
Diagram
Solution
Use the diagram to answer the question. The diagram shows that the organisms are
Attached Figure / Diagram
A
hermaphrodite
B
viviparous
C
oviparous
D
ovoviparous
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
Toads are oviparous, meaning they reproduce by laying eggs instead of giving birth to live young. Amphibians, including toads, typically lay their eggs in or near water. The eggs hatch into tadpoles, which then undergo metamorphosis to develop into adult toads.
Source: Myschool Past Questions Archive (Record #47198)
Biology
UTME / JAMB 2018
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
Solution
The function of pith in plant is
A
Absorb mineral salt and nutrient from the soil
B
Pith, or medulla, is a tissue in the stems of vascular plants. Pith is composed of soft, spongy parenchyma cells, which store and transport nutrients throughout the plant.
C
trap chlorophyll from the sunlight
D
Removal of waste product from the plant
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
Pith is composed of soft, spongy parenchyma cells, which store and transport nutrients throughout the plant.
Source: Myschool Past Questions Archive (Record #47465)
Biology
UTME / JAMB 2018
Population Ecology, Habitats & Conservation
Solution
A pollutant that is mostly associated with acid rain is
A
Nitrogen oxides
B
Ozone
C
Flourine
D
Carbony (IV) oxide
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
The main chemicals in air pollution that create acid rain are sulfur dioxide (SO2) and nitrogen (NOx). Acid rain usually forms high in the clouds where sulfur dioxide and nitrogen oxides react with water, oxygen, and oxidants. This mixture forms a mild solution of sulfuric acid and nitric acid.
Nitrogen dioxide and nitric oxide are referred to together as oxides of nitrogen (NOx). NOx gases react to form smog and acid rain
Source: Myschool Past Questions Archive (Record #47466)
Biology
UTME / JAMB 2018
Excretion & Homeostasis
Solution
What is the function of contractile vacuole in paramecium?
A
Produces Enzymes
B
Gets rid of excreta
C
Stores and digest food
D
Gets rid of excess water
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
Osmoregulation. Paramecium and amoeba live in fresh water. Their cytoplasm contains a greater concentration of solutes than their surroundings and so they absorb water by osmosis. The excess water is collected into a contractile vacuole which swells and finally expels water through an opening in the cell membrane.
: Excretion of water in Paramecium is carried out by the Contractile vacuoles
Source: Myschool Past Questions Archive (Record #47467)
Biology
UTME / JAMB 2018
Digestive System & Feeding Mechanisms
Solution
An organism which exhibit extracellular digestion is
A
Spirogyra
B
Paramecium
C
Amoeba
D
Rhizopus
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
Extracellular digestion is a process in which saprobionts feed by secreting enzymes through the cell membrane onto the food. The enzymes catalyze the digestion of the food into molecules small enough to be taken up by passive diffusion, transport, or phagocytosis. Rhizopus use extracellular digestion.
Source: Myschool Past Questions Archive (Record #47468)
Biology
UTME / JAMB 2018
Variety of Organisms & Classification of Living Things
Solution
How many days is used for incubation of an egg to release chick
A
21
B
22
C
20
D
23
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
On the 21st day of incubation the chick finishes its escape from the shell. The initial break in the shell is made by the egg tooth. This is referred to as external pipping
Source: Myschool Past Questions Archive (Record #47469)
Biology
UTME / JAMB 2018
Reproduction in Plants & Animals
Diagram
Solution
Use the diagram to answer the question. The breeding posture illustrated in the diagram is knows as
Attached Figure / Diagram
A
mating
B
amplexus
C
courtship display
D
reproductive swimming
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
Amplexus is the term used to describe the mating process of toads and frogs.
Source: Myschool Past Questions Archive (Record #47199)
Biology
UTME / JAMB 2018
Variation & Genetics (Heredity)
An accurate identification of a rapist can be carried out by conducting
A
RNA analysis
B
DNA analysis
C
blood group test
D
behavioural tests
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 #47200)
Biology
UTME / JAMB 2018
Growth, Micro-organisms & Public Health
A boy who is fond of swimming in a pond finds himself passing urine with traces of blood. He is like to have contracted?
A
schistosomiasis
B
onchocerciasis
C
poliomyelitis
D
salmonellosis
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 #47201)