POST UTME AFE BABALOLA UNIVERSITY 2025 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
In a cell undergoing mitosis, what is the stage where the chromosomes are condensed and attached to the spindle fibers?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
Question 2
What is the term for the pas\sing of traits from parents to offspring through the transmission of genetic information?
A. Heredity
B. Variation
C. Mutation
D. Genetic drift
Question 3
A diagram of a human respiratory system is shown below. What is the function of the trachea?
A. To transport oxygen to the lungs
B. To transport carbon dioxide from the lungs
C. To regulate the temperature of the body
D. To synthesize proteins
Question 4
A diagram of the human reproductive system is shown below. What is the function of the part labeled 'B'?
A. To produce sperm
B. To produce eggs
C. To store sperm
D. To transport sperm
Question 5
A species of plant has a growth rate of \( \frac{dN}{dt} = rN\( 1 - \frac{N}{K} \ \) ), where ( r ) is the intrinsic growth rate and ( K ) is the carrying capacity. What is the value of ( N ) when the population size is at its maximum?
A. 0
B. K
C. r
D. 1
Question 6
A diagram of the human eye is shown below. What is the function of the part labeled 'A'?
A. To focus light on the retina
B. To detect movement in the visual field
C. To regulate the amount of light entering the eye
D. To correct for nearsightedness
Question 7
In a tropical rainforest biome, the high levels of rainfall and temperature support a diverse array of plant and animal life. Which of the following is a characteristic of the nutrient cycle in this biome?
A. High levels of nutrient leaching into the soil
B. Low levels of nutrient cycling due to the high levels of rainfall
C. High levels of nutrient retention in the vegetation
D. Low levels of nutrient availability due to the high levels of decomposition
Question 8
In the context of genetics, what is the primary function of the centromere in a eukaryotic chromosome?
A. To facilitate the separation of sister chromatids during mitosis
B. To regulate the expression of genes
C. To maintain the structural integrity of the chromosome
D. To facilitate the pairing of homo\logous chromosomes during meiosis
Question 9
The process of cellular respiration involves the breakdown of glu\cose to produce energy. Which of the following stages of cellular respiration involves the transfer of electrons to oxygen?
A. Glycolysis
B. Pyruvate oxidation
C. Citric acid cycle
D. Electron transport chain
Question 10
The process of cell division involves the replication of DNA and the separation of chromosomes. Which of the following stages of the cell cycle is responsible for the replication of DNA?
A. G1 phase
B. S phase
C. G2 phase
D. M phase
Question 11
In the context of digestion, what is the primary function of the enzyme amylase?
A. To break down proteins into amino acids
B. To break down carbohydrates into simple sugars
C. To break down fats into fatty acids and glycerol
D. To break down nucleic acids into nucleotides
Question 12
The Hardy-Weinberg principle states that genetic variation in a population will remain cons\tant from generation to generation if certain conditions are met. Which of the following is NOT one of the conditions for the Hardy-Weinberg principle?
A. Large population size
B. Random mating
C. No mutation
D. No gene flow
Question 13
The process of excretion involves the removal of waste products from the body. Which of the following organs is responsible for filtering waste from the blood?
A. Kidneys
B. Liver
C. Lungs
D. Skin
Question 14
A diagram of the human digestive system is shown below. Identify the structure labeled 'D' in the diagram.
A. Mouth
B. Esophagus
C. Stomach
D. Small intestine
Question 15
The process of mitosis involves the replication of DNA and the separation of chromosomes. Which of the following stages of mitosis is responsible for the separation of sister chromatids?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase

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