POST UTME UNIOSUN 2024 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A diagram of the human nervous system is shown below. What is the primary function of the cerebellum?
A. Control of voluntary movements
B. Regulation of body temperature
C. Proces\sing of sensory information
D. Production of hormones
Question 2
A 2-year-old child is brought to the hospital with a history of recurrent infections. Physical examination reveals a child with a low-set ears, a small jaw, and a broad nasal bridge. Which of the following genetic disorders is most likely responsible for this child's condition?
A. Down syndrome
B. Turner syndrome
C. Klinefelter syndrome
D. Fragile X syndrome
Question 3
A diagram of the xylem tissue is shown below. What is the primary function of the tracheids in this tissue?
A. Transport of water and minerals
B. Support and structure
C. Storage of nutrients
D. Protection from pathogens
Question 4
A patient is diagnosed with a bacterial infection caused by Staphylococcus aureus. The antibiotic of choice for this infection is
A. Penicillin
B. Erythromycin
C. Ciprofloxacin
D. Vancomycin
Question 5
The xylem sap of a plant contains 0.5 M glu\cose. If the plant has a transpiration stream rate of 0.1 L/min, what is the rate of glu\cose transport in the xylem sap?
A. 0.01 M/min
B. 0.05 M/min
C. 0.1 M/min
D. 0.2 M/min
Question 6
A patient is diagnosed with a viral infection caused by Influenza virus. The treatment of choice for this infection is
A. Oseltamivir
B. Ribavirin
C. Zanamivir
D. Amantadine
Question 7
A researcher is studying the effect of temperature on the growth of Saccharomyces cerevisiae. The graph below shows the growth rate of the yeast at different temperatures. What is the temperature at which the growth rate is maximum?
A. 25°C
B. 30°C
C. 35°C
D. 40°C
Question 8
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. 0.72
D. 0.84
Question 9
A researcher is studying the effect of light intensity on the growth of radish plants. The data collected is as follows: Light Intensity \( μmol/m²/s \) Growth Rate \( cm/day \) 100 2.5 200 3.2 300 4.1 400 5.0 500 6.0 What is the best-fit linear equation for this data?
A. y = 0.01x + 1.5
B. y = 0.02x + 1.0
C. y = 0.03x - 0.5
D. y = 0.04x - 1.0
Question 10
A species of bird is classified as a member of the class Aves. Which of the following characteristics is a key feature of this classification?
A. Feathers
B. Wings
C. Beak
D. All of the above
Question 11
A cell is placed in a solution containing 0.1 M glu\cose and 0.2 M fructose. The cell membrane is permeable to both glu\cose and fructose. What is the concentration of glu\cose in the cell after 10 minutes?
A. 0.05 M
B. 0.075 M
C. 0.1 M
D. 0.125 M
Question 12
A patient is diagnosed with a viral infection that is characterized by the production of a specific type of antibody. Which of the following is a likely type of antibody produced in response to this infection?
A. IgA
B. IgG
C. IgM
D. IgE
Question 13
The diagram below represents a simple circuit.
A. The circuit is closed when the switch is in the 'on' position.
B. The circuit is open when the switch is in the 'off' position.
C. The circuit is closed when the switch is in the 'off' position.
D. The circuit is open when the switch is in the 'on' position.
Question 14
A plant with the genotype 'Rr' is crossed with a plant with the genotype 'RR'. What is the probability that the offspring will have the genotype 'Rr'?
A. 0.25
B. 0.5
C. 0.75
D. 0.9
Question 15
A researcher is studying the effect of pH on the growth of Escherichia coli. The graph below shows the growth rate of the bacteria at different pH levels. What is the pH level at which the growth rate is maximum?
A. 6.5
B. 7.0
C. 7.5
D. 8.0

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