POST UTME UNILAG 2018 Biology | Objective
Practice these randomly selected questions to test your readiness.
Question 1
A 20-year-old male patient presents with symptoms of tuberculosis. His sputum smear is positive for Mycobacterium tuberculosis. Which of the following is the most likely mode of transmission of this disease?
Question 2
A population of rabbits is growing exponentially. If the initial population is 100 and the growth rate is 20% per year, what will be the population after 5 years?
Question 3
In a population of rabbits, the frequency of the dominant allele for fur color is 0.6. What is the frequency of the recessive allele?
Question 4
A 30-year-old female patient presents with symptoms of a viral infection. Her blood test shows a high level of IgM antibodies against the virus. Which of the following is the most likely stage of the immune response?
Question 5
In a eukaryotic cell, the process of osmoregulation is primarily facilitated by the
Question 6
A species of bird has a unique mating ritual where the male bird builds a complex nest u\sing twigs and leaves. What type of reproduction is this an example of?
Question 7
A species of bird has a population of 1000 individuals. The population is divided into 3 groups: A, B, and C. Group A has 300 individuals, group B has 400 individuals, and group C has 300 individuals. If the population is expected to grow at a rate of 10% per year, what is the expected population size after 5 years?
Question 8
The nervous system is responsible for transmitting signals between different parts of the body. Which of the following is a type of neuron?
Question 9
A species of plant has a population of 500 individuals. The population is divided into 2 groups: A and B. Group A has 300 individuals, and group B has 200 individuals. If the population is expected to grow at a rate of 15% per year, what is the expected population size after 3 years?
Question 10
In a tropical rainforest e\cosystem, the primary producers are plants that undergo photosynthesis. What is the net result of photosynthesis in terms of oxygen and glu\cose production?
Question 11
In a coral reef e\cosystem, the coral polyps are the primary producers. What is the role of the coral polyps in the e\cosystem?
Question 12
A diagram of the human eye is shown below. Which of the following is the correct label for the part labeled 'A'?
Question 13
A researcher is studying the effect of light intensity on the rate of photosynthesis in a plant. The researcher measures the rate of photosynthesis at different light intensities and obtains the following data: Light intensity \( μmol/m²s \): 100, 200, 300, 400, 500; Rate of photosynthesis \( μmol CO₂/m²s \): 10, 20, 30, 40, 50. What is the equation of the line of best fit for the data?
Question 14
In a population of bacteria, the frequency of the dominant allele for antibiotic resis\tance is 0.8. What is the frequency of the recessive allele?
Question 15
The theory of evolution by natural selection was proposed by
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