POST UTME IMS U 2018 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A solution of glu\cose is placed in a beaker and allowed to diffuse through a semipermeable membrane into a solution of sucrose. What is the direction of the net movement of water molecules?
A. From the sucrose solution to the glu\cose solution
B. From the glu\cose solution to the sucrose solution
C. There is no net movement of water molecules
D. The direction of the net movement of water molecules dep\ends on the concentration of the solutions
Question 2
The process of cellular respiration involves which of the following stages?
A. Glycolysis, Citric Acid Cycle, Electron Transport Chain
B. Photosynthesis, Respiration, Fermentation
C. Mitosis, Meiosis, Cytokinesis
D. DNA Replication, Transcription, Translation
Question 3
A diagram of a plant cell is shown below. Which of the following organelles is responsible for protein synthesis?
A. Nucleus
B. Ribosome
C. Mitochondria
D. Endoplasmic reticulum
Question 4
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 5
A cell in the G2 phase of the cell cycle has a DNA content of 8C. If the cell undergoes mitosis, what will be the DNA content of the daughter cells?
A. 4C
B. 8C
C. 16C
D. 32C
Question 6
In the process of osmoregulation, what is the primary function of the kidneys in maintaining the balance of electrolytes and water in the body?
A. To regulate the pH of the blood
B. To remove excess water from the body
C. To maintain the balance of electrolytes and water in the body
D. To regulate the concentration of glu\cose in the blood
Question 7
The process by which plants transport water and minerals from the roots to the leaves is known as
A. transpiration
B. photosynthesis
C. respiration
D. translocation
Question 8
The process of diffusion in cells involves the movement of which of the following?
A. Molecules from high to low concentration
B. Ions from low to high concentration
C. Water molecules from high to low concentration
D. Proteins from low to high concentration
Question 9
In a population of 1000 individuals, 70% are heterozygous for the gene controlling the production of a certain enzyme. If 20% of the population is homozygous recessive, what is the frequency of the dominant allele?
A. 0.4
B. 0.5
C. 0.6
D. 0.7
Question 10
The Hardy-Weinberg principle states that allele and genotype frequencies in a population will remain cons\tant from generation to generation in the absence of other evolutionary influences. Which of the following is a necessary condition for the Hardy-Weinberg principle to hold?
A. Random mating
B. Large population size
C. No mutation
D. No gene flow
Question 11
The diagram below shows the structure of a blood vessel. What is the primary function of the \endothelium in this vessel?
A. Regulating blood pressure
B. Inhibiting blood clotting
C. Enhancing nutrient uptake
D. Providing structural support
Question 12
A population of 1000 individuals is divided into two groups: one group has 50% of the individuals with the dominant allele, and the other group has 50% of the individuals with the recessive allele. If the two groups are allowed to interbreed, what is the expected frequency of the dominant allele in the offspring?
A. 0.25
B. 0.5
C. 0.75
D. 0.9
Question 13
The concept of eco\logical niches refers to the specific set of environmental conditions and resources that an organism requires to survive and reproduce. Which of the following is an example of a competitive exclusion principle?
A. Two species competing for the same resource
B. Two species occupying the same eco\logical niche
C. Two species having different predator-prey relationships
D. Two species having different adaptations to environmental conditions
Question 14
A researcher isolates a microorganism that exhibits both aerobic and anaerobic respiration. Which of the following best describes the metabolic process of this microorganism?
A. Aerobic respiration only
B. Anaerobic respiration only
C. Both aerobic and anaerobic respiration
D. Neither aerobic nor anaerobic respiration
Question 15
A genetic disorder is caused by a mutation in the gene encoding the protein dystrophin. Which of the following is a characteristic feature of this disorder?
A. Muscle weakness and wasting
B. Cardiac arrhythmias
C. Cognitive impairment
D. Seizures

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