POST UTME DELSU 2022 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A 2-year-old child is diagnosed with a rare genetic disorder that affects the production of a specific enzyme. The child's parents are both carriers of the mutated gene. What is the probability that their next child will be affected by the disorder?
A. 0.25
B. 0.50
C. 0.75
D. 0.90
Question 2
A researcher is studying the effect of pH on the growth of E. coli. The researcher measures the growth of E. coli at different pH levels and plots the data on a graph. Which of the following best describes the relationship between pH and E. coli growth?
A. Inversely proportional
B. Directly proportional
C. No relationship
D. U-shaped
Question 3
A diagram of a typical blood vessel is shown below. What is the function of the \endothelium in the blood vessel?
A. To regulate the amount of water in the blood
B. To provide a pathway for the exchange of gases
C. To line the blood vessel and prevent blood clotting
D. To store food and water
Question 4
A nerve impulse travels from the d\endrite to the axon of a neuron. What type of conduction is this an example of?
A. Saltatory conduction
B. Continuous conduction
C. Gradated conduction
D. Non-graded conduction
Question 5
In the context of evolutionary theory, what is the primary mechanism by which genetic drift leads to the loss of genetic variation in a population?
A. Genetic mutation
B. Gene flow
C. Genetic drift
D. Natural selection
Question 6
A population of bacteria is growing in a controlled environment. The population size is measured over time and plotted on a graph. What is the shape of the graph?
A. Exponential growth
B. Linear growth
C. Logarithmic growth
D. Sigmoid growth
Question 7
A genetic disorder is caused by a mutation in a \single gene. What type of genetic variation is this?
A. Point mutation
B. Frameshift mutation
C. Deletion
D. Insertion
Question 8
The hormone that stimulates the release of milk from the mammary glands is
A. Oxytocin
B. Prolactin
C. Insulin
D. Adrenaline
Question 9
A plant with the genotype 'AaBb' is crossed with a plant with the genotype 'AaBb'. What is the probability that the offspring will have the genotype 'AABB'?
A. 0.25
B. 0.50
C. 0.75
D. 0.90
Question 10
A cell is placed in a hypertonic solution. What will happen to the cell?
A. The cell will swell and eventually burst
B. The cell will shrink and lose water
C. The cell will remain unchanged
D. The cell will gain water and increase in size
Question 11
A 30-year-old woman has a history of recurrent infections. Her white blood cell count is 10,000/μL. What is the most likely cause of her recurrent infections?
A. Immunodeficiency
B. Autoimmune disorders
C. Infectious diseases
D. Cancer
Question 12
A plant grows from a seedling to a mature plant in a period of 5 years. What type of growth is this an example of?
A. Primary growth
B. Secondary growth
C. Tertiary growth
D. Quaternary growth
Question 13
In the context of cellular respiration, what is the primary function of the electron transport chain?
A. To generate ATP
B. To produce NADH
C. To reduce oxygen
D. To increase pH
Question 14
A patient is diagnosed with a bacterial infection caused by a Gram-positive bacterium. Which of the following antibiotics would be most effective in treating this infection?
A. Penicillin
B. Ciprofloxacin
C. Vancomycin
D. Metronidazole
Question 15
In a tropical rainforest e\cosystem, the primary consumers are primarily herbivores that feed on the abundant plant life. Which of the following is a characteristic of the primary consumers in this e\cosystem?
A. They are primarily carnivores
B. They are primarily omnivores
C. They are primarily herbivores
D. They are primarily detritivores

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Help others prepare! Share this practice hub: