POST UTME DELSU 2021 Biology | Objective
Practice these randomly selected questions to test your readiness.
Question 1
A 40-year-old man presents with symptoms of hypertension. His blood pressure is 180/100 mmHg. Which of the following is the most likely cause of his condition?
Question 2
In a eukaryotic cell, what is the primary function of the Golgi apparatus?
Question 3
In a population of Drosophila melanogaster, the frequency of the recessive allele 'r' is 0.2. If the population is in Hardy-Weinberg equilibrium, what is the frequency of the homozygous dominant genotype?
Question 4
A 30-year-old woman presents with symptoms of hyperthyroidism. Her TSH level is suppressed at 0.5 mU/L. Which of the following is the most likely cause of her condition?
Question 5
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'?
Question 6
A diagram of the human respiratory system is shown below. Which of the following structures is responsible for the exchange of oxygen and carbon dioxide?
Question 7
A bacterium is placed in a medium with a pH of 7.0. If the bacterium grows and the pH of the medium increases to 8.0, what is the expected change in the growth rate of the bacterium?
Question 8
A 50-year-old man presents with symptoms of hypothyroidism. His TSH level is elevated at 12 mU/L. Which of the following is the most likely cause of his condition?
Question 9
A researcher is studying the effect of temperature on the rate of a chemical reaction. The researcher measures the rate of the reaction at different temperatures and plots the data on a graph. Which of the following types of graphs would best represent the data?
Question 10
A study on the epidemio\logy of malaria in a rural community revealed that the prevalence of the disease is highest among individuals with a history of previous exposure to the disease. Which of the following best explains this observation?
Question 11
A researcher is studying the effect of antibiotics on the growth of bacteria. Which of the following best describes the mechanism of action of penicillin?
Question 12
A researcher is studying the effect of pH on the growth of E. coli. Which of the following best describes the relationship between pH and bacterial growth?
Question 13
In a population of 1000 individuals, 60% are heterozygous for the gene controlling the flower color. If 20% of the population is homozygous dominant, what is the frequency of the recessive allele?
Question 14
In a certain species of plant, the gene controlling the flower color is linked to the gene controlling the leaf shape. If the plant is homozygous dominant for the flower color gene and heterozygous for the leaf shape gene, what is the probability that the plant will produce offspring with red flowers and wavy leaves?
Question 15
A population of rabbits is growing at a rate of 20% per year. If the initial population is 100 rabbits, what will be the population after 5 years?
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