POST UTME UNIPORT 2023 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A population of birds is exhibiting a phenomenon known as 'albinism'. What is the genetic basis of this condition?
A. Autosomal dominant
B. Autosomal recessive
C. X-linked dominant
D. X-linked recessive
Question 2
A diagram of a simple e\cosystem is shown below. Which of the following is an example of a secondary consumer?
A. Plant
B. Herbivore
C. Carnivore
D. Decomposer
Question 3
What is the process by which an organism's genetic information is passed from one generation to the next?
A. Mutation
B. Genetic drift
C. Natural selection
D. Heritability
Question 4
A DNA molecule consists of two complementary strands of nucleotides. If the sequence of one strand is ATCG, what is the sequence of the complementary strand?
A. TAGC
B. ATCG
C. GCTA
D. GCAT
Question 5
In the xylem transport system, what is the primary function of the xylem parenchyma cells?
A. To produce xylem sap
B. To store food and water
C. To facilitate the transport of water and minerals
D. To produce xylem fibers
Question 6
A plant's ability to undergo photosynthesis is dep\endent on the presence of which of the following pigments?
A. Chlorophyll a
B. Chlorophyll b
C. Carotenoids
D. Anthocyanins
Question 7
A 50-year-old patient presents with symptoms of type 2 diabetes. Which of the following is a characteristic of the disease?
A. Insulin resis\tance
B. Pancreatic \beta-cell failure
C. Genetic predisposition
D. All of the above
Question 8
What is the primary function of the hypothalamus in the nervous system?
A. To regulate body temperature
B. To control hunger and thirst
C. To regulate sleep and wakefulness
D. To control blood pressure
Question 9
In a desert e\cosystem, the primary producers are cacti and succulents. What is the role of these plants in the desert food chain?
A. Primary consumers
B. Decomposers
C. Producers
D. Omnivores
Question 10
A person has a body temperature of 37°C. If the temperature is measured u\sing a thermometer with a sensitivity of 0.1°C, what is the minimum detectable change in temperature?
A. 0.001
B. 0.01
C. 0.1
D. 1
Question 11
A diagram of a plant cell is shown below. Which organelle is responsible for photosynthesis?
A. Mitochondria
B. Chloroplast
C. Nucleus
D. Vacuole
Question 12
A 30-year-old woman presents with symptoms of depression. Which of the following is a characteristic of the disease?
A. Anhedonia
B. Loss of appetite
C. Sleep disturbances
D. All of the above
Question 13
A diagram of the human excretory system is shown below. What is the primary function of the kidneys?
A. Filtering waste from the blood
B. Regulating blood pressure
C. Producing hormones
D. Absorbing nutrients
Question 14
A population of rabbits is growing at a rate of 20% per year. If the initial population is 100 rabbits, what will be the population after 5 years?
A. 1000
B. 2000
C. 4000
D. 8000
Question 15
A 40-year-old man presents with symptoms of hypertension. Which of the following is a characteristic of the disease?
A. Increased blood pressure
B. Cardiac hypertrophy
C. Renal damage
D. All of the above

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