POST UTME AFE BABALOLA UNIVERSITY 2019 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
A plant with the genotype 'Tt' is crossed with a plant with the genotype 'tt'. What is the probability that the offspring will have the genotype 'TT'?
A. 0.25
B. 0.5
C. 0.75
D. 0.9
Question 3
A solution containing 0.1 M glu\cose and 0.1 M fructose is separated by paper chromatography. If the Rf value of glu\cose is 0.4 and the Rf value of fructose is 0.6, what is the ratio of the concentrations of glu\cose and fructose in the solution?
A. 1:1
B. 2:1
C. 3:2
D. 4:1
Question 4
A species of bird has a wing length of 10 cm with a s\tandard deviation of 2 cm. If a sample of 100 birds is taken, what is the probability that the mean wing length of the sample will be less than 9 cm?
A. 0.025
B. 0.05
C. 0.1
D. 0.2
Question 5
A patient has a respiratory rate of 24 breaths per minute. What is the primary function of the lungs in this patient's respiratory system?
A. Exchange of oxygen and carbon dioxide
B. Regulation of body temperature
C. Production of red blood cells
D. Regulation of blood pressure
Question 6
In a eukaryotic cell, the process of photosynthesis occurs in the mitochondria.
A. True
B. False
C. Photosynthesis occurs in the chloroplasts
D. Photosynthesis occurs in the nucleus
Question 7
The process of mitosis is a type of cell division that results in the production of two daughter cells that are genetically identical to the parent cell.
A. True
B. False
C. Mitosis results in the production of four daughter cells
D. Mitosis results in the production of two daughter cells that are genetically different from the parent cell
Question 8
The human reproductive system is composed of two main types of reproductive organs: the male reproductive organs and the female reproductive organs. Which of the following is a characteristic of the male reproductive organs?
A. They are located inside the pelvic cavity
B. They are located outside the pelvic cavity
C. They are composed of only one type of tissue
D. They are composed of two types of tissue
Question 9
A patient is diagnosed with a bacterial infection caused by Staphylococcus aureus. Which of the following antibiotics is most effective against this bacterium?
A. Penicillin
B. Erythromycin
C. Ciprofloxacin
D. Vancomycin
Question 10
A diagram of the human respiratory system is shown below. Which part of the system is responsible for exchanging oxygen and carbon dioxide?
A. Trachea
B. Bronchi
C. Alveoli
D. Diaphragm
Question 11
A cell is placed in a solution containing 0.1 M glu\cose and 0.1 M fructose. If the cell is permeable to both glu\cose and fructose, what is the concentration of glu\cose in the cell after 1 hour?
A. 0.05 M
B. 0.1 M
C. 0.15 M
D. 0.2 M
Question 12
In the context of eco\logy, what is the primary function of a "biome" in a given e\cosystem?
A. To occupy a unique eco\logical niche
B. To have a disproportionate impact on its environment
C. To be a primary producer in the food chain
D. To be a complex community of interacting species
Question 13
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?
A. 0.4
B. 0.6
C. 0.8
D. 0.2
Question 14
A patient has a respiratory rate of 24 breaths per minute. What is the primary function of the diaphragm in this patient's respiratory system?
A. Expansion and contraction of the lungs
B. Increase in air pressure in the lungs
C. Decrease in air pressure in the lungs
D. Regulation of body temperature
Question 15
In the context of nutrition, what is the primary function of the enzyme amylase in the human digestive system?
A. To break down proteins into amino acids
B. To break down carbohydrates into simple sugars
C. To break down fats into fatty acids
D. To break down nucleic acids into nucleotides

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