POST UTME UNN 2020 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A hormone is released from the hypothalamus and travels to the pituitary gland. What is the name of the hormone?
A. Thyroid-stimulating hormone (TSH)
B. Adrenocorticotropic hormone (ACTH)
C. Growth hormone (GH)
D. Prolactin (PRL)
Question 2
A diagram of the human eye is shown below. Which part of the eye is responsible for detecting light?
A. Cornea
B. Iris
C. Pupil
D. Retina
Question 3
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. 0.48
D. 0.72
Question 4
A patient is diagnosed with a bacterial infection caused by Staphylococcus aureus. Which of the following antibiotics is most likely to be effective against this bacterium?
A. Penicillin
B. Erythromycin
C. Vancomycin
D. Ciprofloxacin
Question 5
A diagram of a human respiratory system is shown below. Identify the part labeled 'B'.
A. Trachea
B. Lungs
C. Diaphragm
D. Bronchi
Question 6
A cell is placed in a solution with a concentration of 0.1 M glu\cose. The cell has a permeability coefficient of 1.5 x 10^-6 cm/s. What is the rate of glu\cose uptake by the cell?
A. 1.0 x 10^-3 M/s
B. 1.5 x 10^-3 M/s
C. 2.0 x 10^-3 M/s
D. 3.0 x 10^-3 M/s
Question 7
A diagram of the human circulatory system is shown below. What is the function of the heart?
A. To pump blood to the lungs
B. To pump blood to the brain
C. To pump blood to the muscles
D. To pump blood to the entire body
Question 8
A diagram of a plant cell is shown below. Identify the part labeled 'A'.
A. Mitochondria
B. Chloroplast
C. Nucleus
D. Vacuole
Question 9
A patient is experiencing respiratory distress due to a severe case of asthma. Which of the following medications is most likely to be prescribed to alleviate this condition?
A. Albuterol
B. Ipratropium bromide
C. Montelukast
D. Prednisone
Question 10
In the context of cell division, what is the primary function of the spindle fibers?
A. To separate chromosomes during mitosis
B. To align chromosomes during meiosis
C. To regulate cell growth during interphase
D. To repair DNA damage during the S phase
Question 11
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'?
A. 0.48
B. 0.36
C. 0.64
D. 0.52
Question 12
In the context of genetics, what is the term for the process by which a gene is turned on or off?
A. Gene expression
B. Gene mutation
C. Gene regulation
D. Gene replication
Question 13
In the context of excretion, what is the primary function of the liver?
A. To filter waste products from the blood
B. To regulate blood pressure
C. To produce bile for digestion
D. To store glycogen for energy
Question 14
A diagram of the human kidney is shown below. What is the function of the renal pyramids?
A. To filter waste from the blood
B. To regulate blood pressure
C. To concentrate urine
D. To produce hormones
Question 15
Asexual reproduction in bacteria is primarily facilitated by which of the following processes?
A. Binary fission
B. Mitosis
C. Meiosis
D. Budding

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