POST UTME SKYLINE UNIVERSITY 2022 Biology | Objective
Practice these randomly selected questions to test your readiness.
Question 1
A patient with a history of recurrent respiratory infections is diagnosed with a condition characterized by an abnormality in the structure of the cilia lining the respiratory tract. Which of the following conditions is most likely responsible for this patient's symptoms?
Question 2
The process of digestion in the human body involves the breakdown of complex molecules into simpler ones. Which of the following enzymes is responsible for breaking down proteins?
Question 3
A researcher is studying the genetic basis of a specific disease. The researcher discovers that the disease is caused by a mutation in a gene that codes for a protein involved in the regulation of cell growth. What is the most likely type of mutation responsible for this disease?
Question 4
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 5
In the context of hormonal coordination, what is the primary function of the hypothalamus?
Question 6
The process of excretion in humans involves the removal of waste products from the body through which of the following organs?
Question 7
A researcher is studying the effect of a new compound on the activity of the enzyme lactate dehydrogenase. The compound is found to inhibit the enzyme by binding to a specific site on the enzyme. What type of inhibition is this?
Question 8
A patient is diagnosed with a rare disorder characterized by an inability to synthesize the amino acid tyro\sine. Which of the following enzymes is most likely deficient in this patient?
Question 9
The theory of evolution by natural selection was first proposed by which of the following scientists?
Question 10
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 'RR'?
Question 11
A patient is diagnosed with a rare genetic disorder characterized by an inability to synthesize the amino acid phenylalanine. Which of the following enzymes is most likely deficient in this patient?
Question 12
The human eye has a complex system of muscles and nerves that work together to focus light on the retina. Which of the following structures is responsible for adjusting the shape of the lens to focus light?
Question 13
The theory of evolution by natural selection proposes that species adapt to their environments through the process of mutation and genetic drift. Which of the following is an example of mutation?
Question 14
A study on the evolution of antibiotic resis\tance in bacteria revealed that the rate of resis\tance development is influenced by the presence of certain genes. Which of the following best describes the relationship between gene expression and antibiotic resis\tance?
Question 15
The cell cycle consists of four main stages: interphase, prophase, metaphase, and telophase. Which of the following is a characteristic of the prophase stage?
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