POST UTME UNIOSUN 2019 Biology | Objective
Practice these randomly selected questions to test your readiness.
Question 1
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'?
Question 2
The process by which plants convert light energy into chemical energy is known as?
Question 3
A population of bacteria is growing exponentially. If the initial population is 100 and the population doubles every 2 hours, what is the population after 6 hours?
Question 4
The diagram below represents a pedigree chart for a genetic disorder. What is the probability that a child will inherit the disorder if both parents are carriers?
Question 5
In a population of 1000 individuals, the frequency of the dominant allele is 0.6. If the population is in Hardy-Weinberg equilibrium, what is the frequency of the recessive allele?
Question 6
In a population of 1000 individuals, 300 are heterozygous for a particular gene, 400 are homozygous dominant, and 300 are homozygous recessive. What is the frequency of the recessive allele?
Question 7
A diagram of the human circulatory system is shown below. What is the function of the pulmonary artery?
Question 8
In a eukaryotic cell, the \endoplasmic reticulum (ER) is involved in the synthesis of proteins that are destined for secretion or for use within the cell. Which of the following statements is true about the ER?
Question 9
A species of bird has a unique mating ritual where the male bird builds a complex nest u\sing twigs and leaves. The female bird then selects the nest based on its complexity and chooses the male bird that built it. What type of selection is this an example of?
Question 10
In a population of Drosophila melanogaster, the frequency of the recessive allele 'a' is 0.2. If the Hardy-Weinberg principle is applied, what is the frequency of the homozygous dominant genotype 'AA'?
Question 11
A 2-year-old child is diagnosed with acute lymphoblastic leukemia (ALL). Which of the following is a common genetic abnormality associated with this disease?
Question 12
A diagram of the human brain is shown below. What is the function of the part labeled 'B'?
Question 13
In a population of rabbits, the frequency of the dominant allele for fur color is 0.6, while the frequency of the recessive allele is 0.4. What is the expected frequency of the heterozygous genotype in the population?
Question 14
In the human kidney, the process of filtration involves the movement of waste products from the blood into the nephrons. What is the primary mechanism responsible for this movement?
Question 15
A 2.0 L flask contains 1.0 mol of an ideal gas at 300 K. If the gas is heated to 400 K, what is the new volume of the gas?
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