POST UTME OAU 2017 Biology | Objective
Practice these randomly selected questions to test your readiness.
Question 1
The process of photosynthesis in plants involves the conversion of light energy into chemical energy, which is stored in the form of
Question 2
In a population of E. coli, the average generation time is 20 minutes. If the population is doubling every 30 minutes, what is the growth rate cons\tant (r) in units of 1/min?
Question 3
The human microbiome is composed of trillions of microorganisms that play a crucial role in our health and well-being. Which of the following is an example of a disease that is caused by an imbalance of the human microbiome?
Question 4
A 25-year-old man presents with a 2-year history of infertility. His semen analysis shows a low sperm count and abnormal morpho\logy. What is the most likely cause of his condition?
Question 5
The human body is home to a vast array of microorganisms, including bacteria, viruses, and fungi. Which of the following is a function of the
Question 6
A certain species of bacteria has a generation time of 2 hours. If the initial population is 1000 cells, how many cells will be present after 5 generations?
Question 7
A patient with a history of recurrent kidney stones is found to have a 24-hour urine collection with a pH of 8.5. What is the most likely cause of his condition?
Question 8
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 9
The process of cell division is essential for the growth and development of living organisms. Which of the following stages of cell division is characterized by the
Question 10
A diagram of a human brain is shown below. Identify the structure labeled 'C'.
Question 11
In the context of hormonal coordination, what is the primary function of the hypothalamus?
Question 12
The process of genetic variation occurs through the shuffling of genetic material during meiosis, resulting in the creation of new combinations of alleles. Which of the following is an example of a genetic variation that can occur through this process?
Question 13
The theory of evolution by natural selection proposes that species adapt to their environments through the process of variation, mutation, and genetic drift. Which of the following is an example of a genetic adaptation that has occurred in response to environmental pressures?
Question 14
A nerve impulse travels down a neuron at a speed of 120 m/s. If the impulse is 1.5 cm long, how long does it take to travel from the d\endrite to the axon hillock?
Question 15
In a eukaryotic cell, the process of mitosis is initiated by the breakdown of the nuclear envelope, which is triggered by the activation of the
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