POST UTME REDEEMERS UNIVERSITY 2025 Biology | Objective
Practice these randomly selected questions to test your readiness.
Question 1
A geneticist is studying the inheri\tance of a trait in a population of mice. If the trait is controlled by a \single gene with two alleles, and the frequency of the dominant allele is 0.6, what is the expected frequency of the homozygous recessive genotype?
Question 2
A diagram of a chemical reaction is shown below. What is the product of the reaction?
Question 3
The Hardy-Weinberg principle states that the frequency of alleles in a population will remain cons\tant from generation to generation in the absence of certain factors. Which of the following is NOT a factor that can cause a change in allele frequency?
Question 4
A population of bacteria is growing exponentially. If the initial population size is 100 and the growth rate is 2% per hour, what will be the population size after 5 hours?
Question 5
In the human body, what is the primary function of the pancreas?
Question 6
The movement of molecules from an area of high concentration to an area of low concentration is known as
Question 7
The transport of water and minerals from the roots to the leaves of a plant is known as
Question 8
A population of bacteria is growing exponentially. If the initial population size is 100 and the growth rate is 30% per year, what will be the population size after 5 years?
Question 9
A diagram of the xylem and phloem in a plant stem is shown below. What is the primary function of the xylem?
Question 10
In the context of hormonal coordination, what is the primary function of the hypothalamic-pituitary-adrenal (HPA) axis?
Question 11
The bacterium Escherichia coli (E. coli) is a Gram-negative, rod-shaped bacterium that is commonly found in the human gut. Which of the following is a characteristic of E. coli that contributes to its pathogenicity?
Question 12
A researcher is studying the effect of temperature on the growth of a microorganism. The growth rate is given by the equation: \frac{dN}{dt} = kN\( 1 - \frac{N}{K} \). If the initial population size is 100 and the carrying capacity is 1000, what will be the population size after 10 years?
Question 13
A diagram of the human circulatory system is shown below. What is the primary function of the pulmonary artery?
Question 14
In the context of cellular respiration, what is the primary function of the electron transport chain?
Question 15
A patient is diagnosed with a kidney disorder that affects the reabsorption of glu\cose in the renal tubules. What is the primary consequence of this disorder?
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