POST UTME MOUNTAIN TOP UNIVERSITY 2025 Biology | Objective
Practice these randomly selected questions to test your readiness.
Question 1
A patient is diagnosed with a viral infection caused by the influenza virus. The patient is prescribed a course of antiviral medication, but the infection persists. Which of the following is the most likely reason for the persistence of the infection?
Question 2
A 35-year-old man presents with a 10-year history of progressive cognitive decline, memory loss, and personality changes. His MRI scan shows a significant atrophy of the temporal lobe. Which of the following is the most likely diagnosis?
Question 3
A bio\logist is studying the classification of living things. She is trying to determine the kingdom of a particular organism. Which of the following characteristics would most likely place the organism in the kingdom Animalia?
Question 4
In the context of evolutionary bio\logy, what is the primary mechanism driving the adaptation of populations to changing environments?
Question 5
A patient is diagnosed with a bacterial infection caused by Staphylococcus aureus. The patient is treated with a course of antibiotics, but the infection persists. What is the likely cause of the persistent infection?
Question 6
In a population of pea plants, the frequency of the tall allele is 0.6 and the frequency of the short allele is 0.4. What is the expected frequency of the heterozygous genotype?
Question 7
In the context of evolutionary theories, what is the primary mechanism by which natural selection acts on genetic variation?
Question 8
A 5-gram sample of a subs\tance is dissolved in 50 milliliters of water. If the molarity of the solution is 0.25 M, what is the molar mass of the subs\tance?
Question 9
A researcher is studying the effect of pH on the growth of Escherichia coli. The researcher measures the growth rate of the bacteria at different pH levels and plots the data on a graph. Which of the following types of graphs would be most appropriate for this data?
Question 10
In a typical plant cell, the process of photosynthesis occurs in the following organelle:
Question 11
The process of digestion in the human body \begins in the:
Question 12
A plant has a xylem sap with a concentration of 10% glu\cose. If the plant is absorbing water at a rate of 1 L/h, what is the rate of glu\cose absorption?
Question 13
A population of bacteria is growing exponentially in a nutrient-rich environment. If the initial population size is 100 cells and the growth rate is 2% per hour, what is the population size after 5 hours?
Question 14
In a sample of 100 bacteria, 60 are resis\tant to antibiotic X and 40 are sensitive. What is the probability that a randomly selected bacterium is resis\tant to antibiotic X?
Question 15
A 28-year-old woman presents with a 2-year history of progressive visual loss, double vision, and ptosis. Her visual field test shows a significant loss of peripheral vision. Which of the following is the most likely diagnosis?
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