POST UTME LASU 2019 Biology | Objective
Practice these randomly selected questions to test your readiness.
Question 1
A 25-year-old woman presents to the emergency department with a 2-day history of severe headache, fever, and stiff neck. She has a history of recent travel to a tropical region. A lumbar puncture is performed, and the cerebrospinal fluid (CSF) is sent for analysis. Which of the following is the most likely diagnosis?
Question 2
In the xylem, water and minerals are transported from the roots to the leaves through the process of
Question 3
In a population of Drosophila melanogaster, the frequency of the recessive allele 'r' is 0.2. U\sing the Hardy-Weinberg principle, calculate the frequency of the homozygous dominant genotype 'RR'.
Question 4
A diagram of the human brain is shown below. Which part of the brain is responsible for controlling voluntary movements?
Question 5
A 35-year-old man presents to the primary care physician with a 1-year history of increa\sing fatigue, weakness, and shortness of breath. He has a history of hypertension and hyperlipidemia. A physical examination reveals a systolic ejection murmur. Which of the following is the most likely diagnosis?
Question 6
The process of osmoregulation in animals involves the regulation of the concentration of solutes in the body fluids. Which of the following is a mechanism used by the kidneys to regulate the concentration of solutes in the blood?
Question 7
The process of photosynthesis in plants involves the conversion of light energy into chemical energy. Which of the following is a byproduct of photosynthesis?
Question 8
The Hardy-Weinberg principle states that the frequency of alleles in a population remains cons\tant from generation to generation. Which of the following is a necessary condition for the Hardy-Weinberg principle to hold?
Question 9
The process by which plants convert light energy into chemical energy is known as
Question 10
The equation \( Delta G = Delta H - TDelta S \) represents the change in Gibbs free energy. Which of the following is a necessary condition for a reaction to be spon\taneous?
Question 11
The diagram below represents a simple food web. Which of the following organisms is a primary consumer?
Question 12
In a eukaryotic cell, the \endoplasmic reticulum is involved in the synthesis of proteins that are destined for secretion or for use within the cell. Which of the following is a characteristic of the rough \endoplasmic reticulum?
Question 13
The diagram below represents a simple circuit. Which of the following is the correct direction of current flow?
Question 14
The process of mitosis in a eukaryotic cell results in the production of daughter cells with the same number of chromosomes as the parent cell. Which of the following stages of mitosis is responsible for the separation of chromosomes into two daughter cells?
Question 15
A patient has been diagnosed with a bacterial infection caused by a gram-negative bacterium. The patient's symptoms include fever, chills, and abdominal pain. Which of the following antibiotics is most likely to be effective against this type of infection?
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