POST UTME AL-HIKMAH UNIVERSITY 2020 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A 28-year-old male patient presents with a 3-year history of progressive hearing loss. His audiogram shows a flat bone conduction threshold. Which of the following is the most likely diagnosis?
A. Otosclerosis
B. Meniere's disease
C. Acoustic neuroma
D. Presbycusis
Question 2
The process of respiration in plants involves the breakdown of glu\cose to produce energy. Which of the following is a byproduct of this process?
A. Water
B. Carbon dioxide
C. Oxygen
D. Nitrogen
Question 3
The diagram below shows the structure of a plant cell. Which part of the plant cell is responsible for photosynthesis?
A. Chloroplast
B. Vacuole
C. Cell wall
D. Cytoplasm
Question 4
A person with a genetic disorder has a 25% chance of pas\sing the disorder to each offspring. What is the probability that the disorder will be passed on to at least one of the offspring?
A. 0.25
B. 0.5
C. 0.75
D. 0.875
Question 5
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 6
A diagram of the human brain is shown below. Identify the part labeled 'A'.
A. Cerebrum
B. Cerebellum
C. Brainstem
D. Frontal lobe
Question 7
The type of e\cosystem that is characterized by a large number of species and a complex food web is known as
A. Grassland
B. Desert
C. Rainforest
D. Tundra
Question 8
A diagram of the human eye is shown below. Which part of the eye is responsible for detecting light?
A. Cornea
B. Iris
C. Retina
D. Lens
Question 9
A microorganism that causes a disease in humans is known as a pathogen. Which of the following is an example of a pathogen?
A. Bacillus subtilis
B. Escherichia coli
C. Staphylococcus aureus
D. Saccharomyces cerevisiae
Question 10
A 35-year-old female patient undergoes a liver transplant. Which of the following is the primary function of the Kupffer cells in the liver?
A. To filter the blood
B. To store glycogen
C. To synthesize bile
D. To remove bacteria and debris
Question 11
In a eukaryotic cell, the process of cell division that results in the production of four daughter cells is known as
A. Mitosis
B. Meiosis
C. Binary Fission
D. Endoreduplication
Question 12
Genetic variation occurs when there is a change in the DNA sequence of an organism. Which of the following is an example of genetic variation?
A. Mutation
B. Gene duplication
C. Gene deletion
D. Gene expression
Question 13
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. 0.64
B. 0.36
C. 0.16
D. 0.04
Question 14
A patient is diagnosed with a bacterial infection caused by Staphylococcus aureus. Which of the following antibiotics is most effective against this bacterium?
A. Penicillin
B. Erythromycin
C. Vancomycin
D. Ciprofloxacin
Question 15
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. 0.64
B. 0.36
C. 0.16
D. 0.04

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