POST UTME CALEB UNIVERSITY 2022 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A diagram of a simple harmonic motion is shown below. Identify the type of motion.
A. Simple Harmonic Motion
B. Damped Harmonic Motion
C. Forced Harmonic Motion
D. Oscillatory Motion
Question 2
A plant with the genotype 'Tt' is crossed with a plant with the genotype 'Tt'. What is the probability that the offspring will have the genotype 'tt'?
A. 0.25
B. 0.5
C. 0.75
D. 0.9
Question 3
A plant's xylem is responsible for transporting water and minerals from the roots to the leaves. What is the primary mechanism by which this occurs?
A. Transpiration pull
B. Root pressure
C. Capillary action
D. Osmosis
Question 4
A diagram of a plant cell is shown below. Identify the structure labeled 'A'.
A. Mitochondria
B. Chloroplast
C. Nucleus
D. Vacuole
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. 1
Question 6
The process of heredity involves the pas\sing of traits from parents to offspring. Which of the following is an example of a dominant trait?
A. Eye color
B. Hair color
C. Height
D. Blood type
Question 7
The diagram below shows the structure of the human eye. Which part of the eye is responsible for detecting light?
A. Cornea
B. Iris
C. Retina
D. Lens
Question 8
In a typical plant cell, the vacuole is involved in which of the following processes?
A. Storage of nutrients
B. Regulation of cell turgor pressure
C. Production of digestive enzymes
D. Maintenance of cell shape
Question 9
In genetics, what is the term for the process by which an organism's genetic information is passed from one generation to the next?
A. Mutation
B. Gene expression
C. Heritability
D. Inheri\tance
Question 10
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 11
The diagram below shows the structure of a plant cell. What is the function of the cell wall?
A. Provides structural support
B. Regulates the movement of materials in and out of the cell
C. Stores water and nutrients
D. Produces energy for the cell
Question 12
In the context of sense organs, what is the primary function of the olfactory epithelium?
A. To detect changes in air pressure
B. To convert sound waves into electrical signals
C. To detect chemical particles in the air
D. To regulate body temperature
Question 13
A person is suffering from a severe case of malnutrition. Which of the following is a possible cause of this condition?
A. Inadequate intake of calories.
B. Inadequate intake of essential nutrients.
C. Excessive intake of calories.
D. Excessive intake of essential nutrients.
Question 14
In a population of 1000 individuals, 70% are homozygous dominant (BB), 20% are heterozygous (Bb), and 10% are homozygous recessive (bb). What is the frequency of the recessive allele (b) in this population?
A. 0.10
B. 0.20
C. 0.30
D. 0.40
Question 15
A 2.5 L flask contains 0.25 mol of CO2 at 25°C. What is the partial pressure of CO2 in the flask?
A. 0.25 atm
B. 0.50 atm
C. 0.75 atm
D. 1.00 atm

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