POST UTME VERITAS UNIVERSITY 2017 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A plant has a genotype of BBRR. If the plant is crossed with a plant having the genotype bbrr, what is the probability that the offspring will be homozygous dominant for the gene controlling the flower color?
A. 0.25
B. 0.5
C. 0.75
D. 1.0
Question 2
The excretory system of an insect consists of a pair of
A. Kidneys
B. Lungs
C. Malpighian tubules
D. Intestines
Question 3
A 5% glu\cose solution is prepared by dissolving 5 grams of glu\cose in 95 grams of water. What is the concentration of the solution in g/100mL?
A. 4.5
B. 5.0
C. 5.26
D. 6.0
Question 4
In a population of 1000 individuals, 70% are heterozygous for the gene controlling the flower color, while 30% are homozygous recessive. If the frequency of the dominant allele is 0.8, what is the probability that a randomly selected individual will be homozygous dominant?
A. 0.1
B. 0.2
C. 0.3
D. 0.4
Question 5
The respiratory quotient (RQ) is the ratio of the volume of carbon dioxide produced to the volume of oxygen consumed during respiration. If the RQ is 0.8, what is the ratio of the volume of carbon dioxide produced to the volume of oxygen consumed?
A. 0.8
B. 1.0
C. 1.2
D. 1.5
Question 6
A researcher is studying the effect of temperature on the growth of a microorganism. Which of the following statements is true?
A. The microorganism grows fastest at a temperature of 20°C
B. The microorganism grows fastest at a temperature of 30°C
C. The microorganism grows fastest at a temperature of 40°C
D. The microorganism grows fastest at a temperature of 50°C
Question 7
A plant cell contains 100 μm^3 of cytoplasm and 50 μm^3 of vacuole. If the total volume of the cell is 200 μm^3, what is the percentage of the cell volume occupied by the cytoplasm?
A. 25%
B. 30%
C. 35%
D. 40%
Question 8
In a tropical rainforest, the presence of a large number of epiphytes such as orchids and ferns is an example of which type of eco\logical relationship?
A. Mutualism
B. Commensalism
C. Parasitism
D. Competition
Question 9
A plant cell has a cell wall, a large central vacuole, and a small nucleus. Which of the following is NOT a characteristic of plant cells?
A. Mitochondria
B. Chloroplasts
C. Lysosomes
D. Peroxisomes
Question 10
In a typical human liver cell, the mitochondria are responsible for producing ATP through the process of cellular respiration. If the liver cell contains 1000 mitochondria, each with a surface area of 10 μm^2, what is the total surface area of the mitochondria?
A. 10,000 μm^2
B. 20,000 μm^2
C. 30,000 μm^2
D. 40,000 μm^2
Question 11
A diagram of a human kidney is shown below. What is the function of the structure labeled 'B'?
A. Filtering waste from the blood
B. Regulating blood pressure
C. Producing hormones
D. Storing waste
Question 12
In a population of 1000 individuals, the frequency of the dominant allele (A) is 0.6 and the frequency of the recessive allele (a) is 0.4. What is the expected frequency of the homozygous dominant genotype (AA)?
A. 0.36
B. 0.48
C. 0.64
D. 0.72
Question 13
The process by which an organism's genetic information is passed from one generation to the next is known as
A. Genetic drift
B. Natural selection
C. Mutation
D. Heritability
Question 14
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. 0.36
B. 0.64
C. 0.72
D. 0.84
Question 15
A 0.5 M solution of NaCl is prepared by dissolving 10 g of NaCl in 100 mL of water. What is the molarity of the solution?
A. 0.1 M
B. 0.2 M
C. 0.3 M
D. 0.4 M

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: