POST UTME UI 2023 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A population of rabbits has a birth rate of 0.05 and a death rate of 0.01. If the initial population size is 1000, what is the population size after 5 years?
A. 1500
B. 2000
C. 2500
D. 3000
Question 2
A plant with the genotype 'Tt' is crossed with a plant with the genotype 'tt'. What is the probability that the offspring will have the genotype 'TT'?
A. 0.25
B. 0.5
C. 0.75
D. 0.9
Question 3
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. 0.64
B. 0.36
C. 0.16
D. 0.04
Question 4
A diagram of a hormonal system is shown below. What is the function of the structure labeled 'C'?
A. to regulate growth
B. to control metabolism
C. to stimulate reproduction
D. to maintain homeostasis
Question 5
In a population of 1000 individuals, 70% are heterozygous for the gene controlling the production of a particular enzyme. If 20% of the population is homozygous recessive, what is the frequency of the recessive allele?
A. 0.2
B. 0.3
C. 0.4
D. 0.5
Question 6
A diagram of the human skeletal system is shown below. Which of the following bones is responsible for the formation of red blood cells?
A. Femur
B. Humerus
C. Ribs
D. Sternum
Question 7
In a tropical rainforest, the primary consumers are typically small animals that feed on the primary producers. Which of the following is a characteristic of the primary consumers in a tropical rainforest?
A. They are large animals
B. They are small animals
C. They are herbivores
D. They are carnivores
Question 8
A population of rabbits is growing exponentially. Which of the following is a characteristic of the population growth curve?
A. The curve is a straight line
B. The curve is a parabola
C. The curve is an exponential curve
D. The curve is a \logistic curve
Question 9
A bacterium has a mutation that causes it to produce a toxin that kills other bacteria. Which of the following is a possible outcome of this mutation?
A. The bacterium will become more competitive
B. The bacterium will become less competitive
C. The bacterium will die
D. The bacterium will become resis\tant to antibiotics
Question 10
A diagram of the human respiratory system is shown below. Which of the following structures is responsible for the exchange of oxygen and carbon dioxide?
A. Trachea
B. Lungs
C. Diaphragm
D. Bronchi
Question 11
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. Ciprofloxacin
D. Vancomycin
Question 12
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?
A. 0.36
B. 0.64
C. 0.16
D. 0.04
Question 13
A patient is diagnosed with a bacterial infection. The bacteria are resis\tant to multiple antibiotics. What is the most likely mechanism of resis\tance?
A. Horizontal gene transfer
B. Vertical gene transfer
C. Mutation
D. Gene expression
Question 14
A plant undergoes photosynthesis to produce what type of sugar?
A. Glu\cose
B. Fructose
C. Sucrose
D. Lactose
Question 15
A diagram of the human respiratory system is shown below. Identify the organ responsible for gas exchange.
A. Trachea
B. Diaphragm
C. Lungs
D. Bronchi

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: