POST UTME AFE BABALOLA UNIVERSITY 2018 Biology | Objective
Practice these randomly selected questions to test your readiness.
Question 1
A plant cell has a cell wall, a large central vacuole, and a small nucleus. What is the primary function of the cell wall?
Question 2
The biome that is characterized by a large amount of rainfall and a dense cover of vegetation is called
Question 3
A 45-year-old woman with a history of diabetes presents with symptoms of hyperglycemia. Her blood glu\cose level is 250 mg/dL. What is the likely diagnosis?
Question 4
The human body is composed of various systems, including the circulatory, respiratory, and nervous systems. Which of the following is a function of the circulatory system?
Question 5
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 6
A population of bacteria is growing in a nutrient-rich environment. The population size is initially 100 bacteria and is increa\sing at a rate of 20% per hour. After 5 hours, the population size is 3200 bacteria. What is the growth rate of the population per hour?
Question 7
A population of plants is growing in a field. The plants are competing for resources such as water and nutrients. The population size is initially 100 plants and is increa\sing at a rate of 15% per day. After 10 days, the population size is 3200 plants. What is the growth rate of the population per day?
Question 8
A diagram of a human reproductive system is shown below. Identify the part of the system responsible for fertilization.
Question 9
The process by which an organism becomes better suited to its environment is called
Question 10
A 25-year-old woman with a history of asthma presents with symptoms of bronchitis. Her peak expiratory flow rate (PEFR) is 200 L/min. What is the likely diagnosis?
Question 11
A diagram of a human respiratory system is shown below. Identify the part of the system responsible for gas exchange.
Question 12
A species of bird has a beak shape that is adapted for eating seeds. The beak shape is determined by a \single gene with two alleles: B and b. The geneticist finds that the birds with the B allele have a beak shape that is 10% longer than the birds with the b allele. What is the effect of the B allele on the beak shape?
Question 13
A 2.5 L flask contains 0.5 mol of an ideal gas at 27°C. Calculate the pressure of the gas in atmospheres.
Question 14
A geneticist is studying the inheri\tance of a trait in a family. The trait is determined by a \single gene with two alleles: A and a. The geneticist finds that the offspring of two heterozygous parents (Aa x Aa) have a 25% chance of inheriting the A allele and a 75% chance of inheriting the a allele. What is the genotype of the parents?
Question 15
A diagram of a plant cell is shown below. Identify the organelle responsible for protein synthesis.
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