POST UTME DELSU 2023 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A microorganism is isolated from a patient and identified as Staphylococcus aureus. Which of the following is a characteristic of this bacterium?
A. It is a gram-negative bacterium
B. It is a facultative anaerobe
C. It is a spore-forming bacterium
D. It is a motile bacterium
Question 2
A patient is diagnosed with a bacterial infection caused by Escherichia coli. Which of the following antibiotics would be most effective in treating this infection?
A. Penicillin
B. Ciprofloxacin
C. Amoxicillin
D. Vancomycin
Question 3
A 0.5 M solution of a weak acid HA is prepared by dissolving 0.5 g of the acid in 100 mL of water. What is the pH of the solution?
A. 2.0
B. 2.5
C. 3.0
D. 3.5
Question 4
A researcher is studying the effect of temperature on the growth of a microorganism. The researcher measures the growth rate of the microorganism at different temperatures and plots the data on a graph. If the growth rate is highest at 37°C, what can be concluded about the optimal temperature for the microorganism's growth?
A. 37°C is the optimal temperature for the microorganism's growth
B. 37°C is the minimum temperature for the microorganism's growth
C. 37°C is the maximum temperature for the microorganism's growth
D. 37°C is the neutral temperature for the microorganism's growth
Question 5
A geneticist is studying the inheri\tance of a trait in a family. Which of the following modes of inheri\tance would be most likely to result in a pattern of inheri\tance that is consistent with the Hardy-Weinberg principle?
A. Autosomal dominant
B. Autosomal recessive
C. X-linked dominant
D. X-linked recessive
Question 6
A solution of 0.1 M NaCl is prepared by dissolving 5.84 g of NaCl in 1 L of water. What is the concentration of the solution in molarity?
A. 0.05 M
B. 0.1 M
C. 0.15 M
D. 0.2 M
Question 7
A plant cell is placed in a solution containing 0.1 M glu\cose. Which of the following is the correct representation of the equation for the process that occurs?
A. C6H12O6 + 6O2 → 6CO2 + 6H2O
B. C6H12O6 + 6H2O → 6CO2 + 12H2
C. C6H12O6 → C6H12O6 + 6O2
D. C6H12O6 + 6O2 → 6CO2 + 6H2O
Question 8
The theory of evolution proposes that species change over time due to
A. Genetic Drift
B. Mutation
C. Natural Selection
D. Gene Flow
Question 9
A species of animal has a genetic variation that affects its ability to adapt to its environment. If the animal has a 30% chance of inheriting the variation from each parent, what is the probability that the animal will inherit two copies of the variation?
A. 0.09
B. 0.3
C. 0.6
D. 0.9
Question 10
A researcher is studying the effect of pH on the growth of E. coli. The researcher measures the growth rate of E. coli at different pH levels and plots the data on a graph. If the growth rate is highest at pH 7, what can be concluded about the optimal pH for E. coli growth?
A. pH 7 is the optimal pH for E. coli growth
B. pH 7 is the minimum pH for E. coli growth
C. pH 7 is the maximum pH for E. coli growth
D. pH 7 is the neutral pH for E. coli growth
Question 11
In a population of 1000 individuals, the frequency of the dominant allele is 0.6. If the population is in Hardy-Weinberg equilibrium, what is the frequency of the recessive allele?
A. 0.4
B. 0.2
C. 0.8
D. 0.1
Question 12
A researcher is studying the genetic variation in a population of Drosophila melanogaster. Which of the following genetic markers would be most useful for identifying genetic variation?
A. Allozyme variation
B. Microsatellite variation
C. Mitochondrial DNA variation
D. Chromosomal variation
Question 13
A tissue is composed of which of the following types of cells?
A. Squamous epithelial cells
B. Cuboidal epithelial cells
C. Columnar epithelial cells
D. All of the above
Question 14
In a eukaryotic cell, the process of cellular respiration occurs in which of the following organelles?
A. Mitochondria
B. Chloroplast
C. Nucleus
D. Endoplasmic Reticulum
Question 15
The process of mitosis in eukaryotic cells results in the production of two daughter cells that are genetically identical to the parent cell. Which of the following stages of mitosis is characterized by the separation of sister chromatids?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase

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