POST UTME AFE BABALOLA UNIVERSITY 2017 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A diagram of the human eye is shown below. Which part of the eye is responsible for detecting light?
A. Cornea
B. Iris
C. Retina
D. Lens
Question 2
In the context of evolutionary bio\logy, what is the primary mechanism by which species adapt to their environment?
A. Natural Selection
B. Genetic Drift
C. Mutation
D. Gene Flow
Question 3
A 35-year-old female patient presents with a 6-month history of diarrhea, weight loss, and abdominal pain. Her stool culture reveals the presence of a gram-positive rod. Which of the following is the most likely cause of her symptoms?
A. Clostridioides difficile
B. Bacteroides fragilis
C. Escherichia coli
D. Staphylococcus aureus
Question 4
A 25-year-old male patient presents with a 3-month history of fatigue, weakness, and shortness of breath. His complete blood count reveals a hemoglobin level of 7.5 g/dL. Which of the following is the most likely cause of his symptoms?
A. Iron deficiency anemia
B. Vitamin B12 deficiency anemia
C. Folate deficiency anemia
D. Sickle cell anemia
Question 5
In the context of plant transport systems, what is the primary function of the xylem?
A. Transport of water and minerals from roots to leaves
B. Transport of sugars and amino acids from leaves to roots
C. Transport of ions and nutrients from soil to roots
D. Transport of waste products from leaves to roots
Question 6
A 40-year-old male patient presents with a 5-year history of hypertension. His blood pressure is 180/100 mmHg. Which of the following is the most likely cause of his symptoms?
A. Renal artery stenosis
B. Coarctation of the aorta
C. Hypertensive heart disease
D. Pheochromocytoma
Question 7
A patient is diagnosed with a genetic disorder that affects the production of a specific enzyme. Which of the following is a likely consequence of this disorder?
A. Hemophilia
B. Sickle cell anemia
C. Cystic fibrosis
D. Tay-Sachs disease
Question 8
A diagram of a plant cell is shown below. Which of the following organelles is responsible for protein synthesis?
A. Mitochondria
B. Ribosome
C. Endoplasmic reticulum
D. Lysosome
Question 9
In a plant, water is transported from the roots to the leaves through the xylem. What is the primary mechanism responsible for this process?
A. Transpiration pull
B. Root pressure
C. Capillary action
D. Osmosis
Question 10
A 30-year-old female patient presents with a 2-year history of infertility. Her semen analysis reveals a low sperm count. Which of the following is the most likely cause of her symptoms?
A. Varicocele
B. Epididymitis
C. Prostatitis
D. Hypogonadism
Question 11
A patient with a rare genetic disorder has a mutation in the HFE gene, leading to an accumulation of iron in the body. Which of the following is a likely consequence of this mutation?
A. Hemochromatosis
B. Thalassemia
C. Sickle cell anemia
D. Cystic fibrosis
Question 12
A diagram of the human circulatory system is shown below. Which part of the system is responsible for transporting oxygenated blood from the lungs to the heart?
A. Pulmonary Veins
B. Pulmonary Arteries
C. Aorta
D. Superior Vena Cava
Question 13
A population of bacteria is growing exponentially. If the initial population is 100 cells and the population doubles every 2 hours, what is the population after 6 hours?
A. 1000
B. 2000
C. 4000
D. 8000
Question 14
In the context of evolutionary bio\logy, what is the primary mechanism by which species adapt to their environment?
A. Natural Selection
B. Genetic Drift
C. Mutation
D. Gene Flow
Question 15
A 20-year-old male patient presents with a 2-week history of fever, headache, and confusion. His blood culture reveals the presence of a gram-negative rod. Which of the following is the most likely cause of his symptoms?
A. Neisseria meningitidis
B. Haemophilus influenzae
C. Escherichia coli
D. Pseudomonas aeruginosa

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