POST UTME COAL CITY UNIVERSITY 2024 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A phytoplankton community in a freshwater lake is dominated by cyanobacteria. Which of the following is a likely consequence of this dominance?
A. Increased water clarity
B. Decreased dissolved oxygen levels
C. Increased primary production
D. Reduced nutrient cycling
Question 2
A cell bio\logist is studying the process of mitosis. Which of the following stages is characterized by the condensation of chromatin?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
Question 3
The human body has a complex system of defense mechanisms that protect it from pathogens and other foreign subs\tances.
A. True
B. False
C. The human body does not have a system of defense mechanisms
D. The human body has a simple system of defense mechanisms
Question 4
In a population of Drosophila melanogaster, the frequency of the recessive allele 'a' is 0.2. If the population is in Hardy-Weinberg equilibrium, what is the frequency of the homozygous dominant genotype 'AA'?
A. 0.36
B. 0.64
C. 0.8
D. 0.16
Question 5
A researcher is studying the classification of a new species of flowering plant. Which of the following is a key characteristic used to distinguish between monocots and dicots?
A. Number of cotyledons
B. Type of leaf venation
C. Number of petals
D. Type of root system
Question 6
A 25-year-old woman presents to the emergency department with severe headache and vomiting. She has a history of migraines and is taking sumatrip\tan. Which of the following is the most likely cause of her symptoms?
A. Migraine
B. Cluster headache
C. Sinusitis
D. Tension headache
Question 7
In the context of eco\logical succession, what is the primary factor that determines the rate of succession?
A. Climate
B. Topography
C. Soil quality
D. Species diversity
Question 8
In the context of tissue organization, what is the primary function of the basement membrane?
A. To provide structural support to the tissue
B. To facilitate the exchange of nutrients and waste products
C. To regulate the movement of cells and molecules
D. To produce hormones and other signaling molecules
Question 9
A 30-year-old woman is brought to the emergency room with symptoms of severe abdominal pain, nausea, and vomiting. The patient's symptoms worsen after being treated with a medication that inhibits the release of gastrin. Which of the following is a likely explanation for this observation?
A. The patient has a mutation in the GAST gene that confers resis\tance to gastrin.
B. The patient has a mutation in the CHGA gene that confers resis\tance to gastrin.
C. The patient has a mutation in the GCG gene that confers resis\tance to gastrin.
D. The patient has a mutation in the PCSK1 gene that confers resis\tance to gastrin.
Question 10
The process of digestion in the human body \begins in the mouth and continues in the stomach and small intestine.
A. True
B. False
C. The process of digestion \begins in the stomach and continues in the small intestine
D. The process of digestion \begins in the small intestine and continues in the stomach
Question 11
The process of mitosis in a eukaryotic cell results in the production of two daughter cells that are genetically identical to the parent cell.
A. True
B. False
C. Mitosis results in the production of four daughter cells
D. Mitosis results in the production of two daughter cells with different genetic makeup
Question 12
In a eukaryotic cell, the process of photosynthesis occurs in the mitochondria.
A. True
B. False
C. Photosynthesis occurs in the chloroplasts
D. Photosynthesis occurs in the cytoplasm
Question 13
A researcher is studying the excretion of urea in the kidneys. What is the primary mechanism by which the kidneys regulate the concentration of urea in the blood?
A. Active transport
B. Passive diffusion
C. Osmosis
D. Filtration
Question 14
A geneticist is studying the inheri\tance of a specific trait. Which of the following is a likely outcome of a cross between two heterozygous individuals?
A. All offspring will be homozygous dominant
B. All offspring will be homozygous recessive
C. All offspring will be heterozygous
D. The offspring will be a mixture of homozygous and heterozygous individuals
Question 15
A bio\logist is studying the classification of living organisms. Which of the following is a characteristic of the domain Archaea?
A. They are prokaryotic cells
B. They are eukaryotic cells
C. They are found in extreme environments
D. They are multicellular organisms

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