POST UTME IMS U 2020 Biology | Objective

Are you preparing for POST UTME IMS U exams? Reviewing past questions is one of the most effective ways to guarantee a high score. This practice hub features authentic 2020 Biology (Objective) questions designed to simulate the real exam environment.

Practice these randomly selected questions to test your readiness.

Question 1
In a eukaryotic cell, the process of mitosis is initiated by the breakdown of the nuclear envelope, which is triggered by the activation of the
A. Spindle fibers
B. Centrioles
C. Telophase
Correct D. Prophase

Correct Answer: D

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Question 2
The diagram below shows the structure of a plant cell. Which part is responsible for photosynthesis?
A. Vacuole
Correct B. Chloroplast
C. Mitochondria
D. Nucleus

Correct Answer: B

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Question 3
The Hardy-Weinberg principle states that the frequency of alleles in a population will remain cons\tant from generation to generation if
A. There is no mutation or genetic drift
B. There is no gene flow
C. The population is infinite
Correct D. All of the above

Correct Answer: D

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Question 4
The diagram below shows the structure of a neuron. Which part is responsible for transmitting signals to other neurons?
A. D\endrite
Correct B. Axon
C. Cell body
D. Myelin sheath

Correct Answer: B

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Question 5
The process of meiosis results in the production of
Correct A. Four haploid daughter cells
B. Two diploid daughter cells
C. One haploid daughter cell
D. Four diploid daughter cells

Correct Answer: A

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Question 6
A study on the genetic variation of a population found that the frequency of the dominant allele (A) is 0.6, while the frequency of the recessive allele (a) is 0.4. If the population is in Hardy-Weinberg equilibrium, what is the frequency of the homozygous dominant genotype (AA)?
Correct A. 0.36
B. 0.48
C. 0.52
D. 0.64

Correct Answer: A

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Question 7
A patient has been diagnosed with a bacterial infection caused by a Gram-positive bacterium. Which of the following antibiotics would be most effective in treating this infection?
A. Penicillin
B. Erythromycin
C. Ciprofloxacin
Correct D. Vancomycin

Correct Answer: D

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Question 8
A plant has a growth rate of 2 cm/day. If it grows for 5 days, what is the total dis\tance it has grown?
A. 5
Correct B. 10
C. 15
D. 20

Correct Answer: B

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Question 9
A patient has been diagnosed with a neuro\logical disorder that affects the coordination of their movements. Which of the following brain regions is most likely to be affected?
A. Cerebrum
Correct B. Cerebellum
C. Brainstem
D. Spinal Cord

Correct Answer: B

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Question 10
A patient has been diagnosed with a kidney disease that affects the excretion of waste products. Which of the following organs is most likely to be affected?
A. Liver
Correct B. Kidney
C. Pancreas
D. Spleen

Correct Answer: B

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Question 11
The Hardy-Weinberg principle states that the frequency of alleles in a population will remain cons\tant from generation to generation if five conditions are met. Which of the following is NOT one of these conditions?
Correct A. Large population size
B. Random mating
C. No mutation
D. No gene flow

Correct Answer: A

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Question 12
In a population of Drosophila melanogaster, the frequency of the recessive allele 'b' is 0.2. What is the expected frequency of the homozygous recessive genotype 'bb'?
A. 0.02
Correct B. 0.04
C. 0.06
D. 0.08

Correct Answer: B

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Question 13
The process of mitosis is divided into four stages: prophase, metaphase, anaphase, and telophase. Which stage is characterized by the condensation of chromosomes?
Correct A. Prophase
B. Metaphase
C. Anaphase
D. Telophase

Correct Answer: A

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Question 14
The respiratory system is responsible for exchanging gases between the body and the environment. Which of the following is NOT a function of the respiratory system?
A. Oxygenation of the blood
B. Removal of carbon dioxide
Correct C. Regulation of body temperature
D. Production of red blood cells

Correct Answer: C

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Question 15
The process of meiosis is responsible for the production of gametes in sexually reproducing organisms. Which of the following is a characteristic of meiosis?
Correct A. Reduction in chromosome number
B. Increase in chromosome number
C. No change in chromosome number
D. Random assortment of chromosomes

Correct Answer: A

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Question 16
In a population of Drosophila melanogaster, the frequency of the recessive allele 'b' for black eyes is 0.2. If the population is in Hardy-Weinberg equilibrium, what is the frequency of the homozygous dominant genotype 'B'B?
A. 0.2
Correct B. 0.4
C. 0.6
D. 0.8

Correct Answer: B

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Question 17
A 2.5 L flask contains 0.5 mol of an ideal gas at 298 K. If 1.0 mol of the gas is added to the flask, what is the new pressure?
A. 1.2 atm
B. 1.5 atm
Correct C. 2.0 atm
D. 2.5 atm

Correct Answer: C

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Question 18
A plant grows in a pot with a mixture of sand, silt, and clay. If the mixture contains 20% sand, 30% silt, and 50% clay, what is the percentage of the mixture that is neither sand nor silt?
A. 20%
B. 30%
C. 40%
Correct D. 50%

Correct Answer: D

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Question 19
A population of rabbits is growing according to the \logistic growth model. If the initial population is 100, the carrying capacity is 1000, and the growth rate is 0.1, what is the population after 5 years?
A. 500
B. 600
Correct C. 700
D. 800

Correct Answer: C

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Question 20
A 10 L flask contains 2.0 mol of an ideal gas at 298 K. If the gas is heated to 373 K, what is the new volume?
A. 10 L
B. 15 L
Correct C. 20 L
D. 25 L

Correct Answer: C

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Question 21
In the context of gas exchange, what is the primary function of the alveoli in the lungs?
A. To regulate blood pressure
Correct B. To exchange oxygen and carbon dioxide
C. To filter blood
D. To produce red blood cells

Correct Answer: B

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Question 22
A bio\logist studying the eco\logy of a forest e\cosystem observes that the population of a particular species of tree is increa\sing exponentially. Which of the following best describes the type of growth pattern exhibited by this species?
A. Logistic growth
Correct B. Exponential growth
C. Sigmoid growth
D. Linear growth

Correct Answer: B

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Question 23
A diagram of the human eye is shown below. Which of the following structures is responsible for the accommodation of light?
A. Cornea
B. Iris
Correct C. Lens
D. Retina

Correct Answer: C

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Question 24
A bio\logist is studying the reproductive cycle of a species of frog. Which of the following stages is characterized by the formation of a zygote?
Correct A. Fertilization
B. Fecundation
C. Implantation
D. Gestation

Correct Answer: A

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Question 25
A bio\logist is classifying a new species of plant. Which of the following characteristics would most likely place it in the kingdom Plantae?
A. Presence of a backbone
Correct B. Presence of a cell wall
C. Presence of flagella
D. Presence of a nucleus

Correct Answer: B

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