POST UTME IMS U 2019 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A diagram of a human kidney is shown below. What is the function of the nephrons in the kidney?
A. To filter waste from the blood
B. To regulate blood pressure
C. To produce urine
D. To store water
Question 2
In the context of evolutionary theories, what is the primary mechanism driving the adaptation of populations to changing environments?
A. Natural Selection
B. Genetic Drift
C. Gene Flow
D. Mutation
Question 3
A 25-year-old male patient presents with symptoms of hyperglycemia. His blood glu\cose level is 250 mg/dL. Which of the following hormones is primarily responsible for the increase in blood glu\cose?
A. Glucagon
B. Insulin
C. Adrenaline
D. Thyroid hormone
Question 4
In a photosynthetic pathway, which of the following is the primary function of the enzyme RuBisCO?
A. Fixation of CO2
B. Reduction of CO2
C. Oxidation of CO2
D. Decarboxylation of CO2
Question 5
In a forest e\cosystem, the process of decomposition involves the breakdown of organic matter into simpler subs\tances. Which of the following microorganisms is responsible for decompo\sing cellulose?
A. Bacteria
B. Fungi
C. Protozoa
D. Algae
Question 6
A diagram of the human eye is shown below. Identify the part labeled 'A'.
A. Cornea
B. Iris
C. Retina
D. Optic Nerve
Question 7
In the context of evolutionary theories, what is the primary mechanism by which natural selection acts on populations?
A. Genetic drift
B. Mutation
C. Gene flow
D. Differential reproduction
Question 8
A genetic cross between two pea plants is performed to study the inheri\tance of the trait 'tall' versus 'dwarf'. If the tall parent is homozygous dominant (TT) and the dwarf parent is homozygous recessive (tt), what is the expected genotype of the offspring?
A. Tt
B. Tt
C. Tt
D. Tt
Question 9
In a eukaryotic cell, the process of mitosis involves the separation of chromosomes into two daughter cells. Which of the following stages of mitosis is characterized by the condensation of chromatin into visible chromosomes?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
Question 10
A plant cell is placed in a solution with a high concentration of salt. What will happen to the cell's turgor pressure?
A. Increase
B. Decrease
C. Remain the same
D. Become negative
Question 11
A patient is diagnosed with a bacterial infection. The bacteria are Gram-positive and have a characteristic 'chain-like' morpho\logy. What is the most likely cause of the infection?
A. Staphylococcus aureus
B. Streptococcus pneumoniae
C. Escherichia coli
D. Pseudomonas aeruginosa
Question 12
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. 0.36
B. 0.64
C. 0.16
D. 0.84
Question 13
A patient has a blood urea nitrogen (BUN) level of 25 mg/dL and a creatinine level of 1.2 mg/dL. What is the approximate ratio of BUN to creatinine?
A. 20:1
B. 10:1
C. 5:1
D. 2:1
Question 14
A diagram of a simple circuit is shown below. What is the total current of the circuit?
A. 2 A
B. 4 A
C. 6 A
D. 8 A
Question 15
A researcher studying the effects of climate change on e\cosystems observes that the increase in temperature is cau\sing a shift in the distribution of plant species. Which of the following eco\logical processes is most likely responsible for this phenomenon?
A. Niche shift
B. Species migration
C. Adaptation
D. Evolution

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