POST UTME UNIPORT 2022 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
The Hardy-Weinberg principle states that the frequency of alleles in a population remains cons\tant from generation to generation. Which of the following is a condition for this principle to hold?
A. No mutation occurs
B. No gene flow occurs
C. No genetic drift occurs
D. All of the above
Question 2
A patient presents with symptoms of kidney disease. Laboratory tests reveal elevated levels of urea and creatinine in the blood. Which of the following is the most likely cause of the patient's symptoms?
A. Chronic kidney disease
B. Acute kidney injury
C. Nephrotic syndrome
D. Nephritic syndrome
Question 3
The process of photosynthesis occurs in the chloroplasts of plant cells. What is the primary function of the chloroplasts?
A. To synthesize chlorophyll
B. To break down glu\cose
C. To produce ATP
D. To transport water and minerals
Question 4
A species of animal has a respiratory system that involves the exchange of gases between the air and the blood. Which of the following is a likely consequence of this respiratory system?
A. Increased oxygen levels in the blood
B. Decreased oxygen levels in the blood
C. Increased carbon dioxide levels in the blood
D. Decreased carbon dioxide levels in the blood
Question 5
The process of natural selection can lead to the evolution of new species through the mechanism of genetic drift, mutation, and gene flow. Which of the following is NOT a mechanism of evolution?
A. Genetic drift
B. Mutation
C. Gene flow
D. Artificial selection
Question 6
The process of mitosis involves the replication of DNA and the separation of chromosomes. Which of the following is a stage of mitosis?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
Question 7
In the context of nutrition, what is the primary function of the pancreas in regulating blood sugar levels?
A. To produce insulin
B. To produce glucagon
C. To regulate the amount of glu\cose in the blood
D. To regulate the amount of electrolytes in the blood
Question 8
In the context of excretion and osmoregulation, what is the primary function of the kidneys in maintaining electrolyte balance?
A. To regulate the amount of water in the body
B. To regulate the amount of electrolytes in the body
C. To regulate the pH of the blood
D. To regulate the amount of glu\cose in the blood
Question 9
A genetic cross between two individuals results in a 1:1 ratio of offspring with a particular trait. What is the genotype of the parents?
A. Both parents are homozygous dominant
B. Both parents are homozygous recessive
C. One parent is homozygous dominant and the other is homozygous recessive
D. Both parents are heterozygous
Question 10
The process of cellular respiration involves the breakdown of glu\cose to produce ATP. Which of the following is a byproduct of this process?
A. Water
B. Carbon dioxide
C. Oxygen
D. All of the above
Question 11
In a tropical rainforest, the primary consumers are primarily herbivores. Which of the following is a characteristic of these herbivores?
A. They have a large body size
B. They have a short digestive tract
C. They have a specialized digestive system
D. They have a high metabolic rate
Question 12
A researcher is studying the effect of pH on the growth of a microorganism. The researcher measures the growth rate of the microorganism at different pH levels and plots the data on a graph. What is the expected shape of the graph?
A. S-shaped curve
B. Linear
C. Exponential
D. Logarithmic
Question 13
A researcher is studying the effect of temperature on the growth of a microorganism. The researcher measures the growth rate of the microorganism at different temperatures and plots the data on a graph. What is the expected shape of the graph?
A. S-shaped curve
B. Linear
C. Exponential
D. Logarithmic
Question 14
What is the primary function of the Golgi apparatus in eukaryotic cells?
A. To synthesize proteins
B. To break down proteins
C. To modify and package proteins for transport
D. To synthesize lipids
Question 15
In a tropical rainforest e\cosystem, the primary producers are mostly plants and algae. What is the role of these organisms in the e\cosystem?
A. Primary consumers
B. Decomposers
C. Producers
D. Omnivores

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