POST UTME UNILAG 2024 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A diagram of the human digestive system is shown below. Which of the following structures is responsible for the breakdown of proteins?
A. Mouth
B. Stomach
C. Small intestine
D. Pancreas
Question 2
In a population of Drosophila melanogaster, the frequency of the recessive allele 'b' for black body color 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
B. 0.4
C. 0.6
D. 0.8
Question 3
A diagram shows a plant with a mutation in the 'Y' gene, resulting in yellow flowers. The plant is crossed with a plant with the genotype 'yy'. What is the probability that the offspring will have yellow flowers?
A. 0.0
B. 0.25
C. 0.5
D. 0.75
Question 4
A researcher is studying the effect of light intensity on the growth of plants. The researcher measures the growth rate of the plants at different light intensities and plots the data on a graph. What type of graph would the researcher most likely use to represent the data?
A. Line Graph
B. Bar Graph
C. Scatter Plot
D. Histogram
Question 5
A diagram of a simple e\cosystem is shown below. Identify the role of the producer in the e\cosystem.
A. Primary consumer
B. Decomposer
C. Producer
D. Secondary consumer
Question 6
In a photosynthetic pathway, what is the primary function of the enzyme RuBisCO?
A. Fixation of CO2
B. Reduction of CO2
C. Oxidation of CO2
D. Decarboxylation of CO2
Question 7
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 8
In the context of evolutionary theory, what is the primary mechanism by which genetic drift leads to the fixation of a deleterious mutation?
A. Genetic hitchhiking
B. Genetic linkage
C. Genetic recombination
D. Genetic mutation
Question 9
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 10
A cell is shown below. What is the primary function of the mitochondria in this cell?
A. Protein synthesis
B. Cell signaling
C. Energy production
D. Cell division
Question 11
A plant growth regulator is shown below. What is the likely effect of this regulator on plant growth?
A. Increased cell elongation
B. Increased cell division
C. Increased cell differentiation
D. Increased cell death
Question 12
In a population of 1000 individuals, the frequency of the dominant allele is 0.6. If the population is in Hardy-Weinberg equilibrium, what is the frequency of the recessive allele?
A. 0.4
B. 0.2
C. 0.8
D. 0.1
Question 13
In the context of evolutionary theories, what is the term for the process by which a new species emerges from an existing one?
A. Speciation
B. Genetic drift
C. Gene flow
D. Mutation
Question 14
A plant cell is placed in a solution with a high concentration of sucrose. What will happen to the cell?
A. The cell will shrink due to water loss
B. The cell will swell due to water uptake
C. The cell will remain unchanged
D. The cell will burst due to osmotic pressure
Question 15
A diagram of the human heart is shown below. Which part of the heart is responsible for pumping blood to the lungs?
A. Right atrium
B. Left atrium
C. Right ventricle
D. Left ventricle

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