POST UTME RSU 2020 Biology | Objective
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Question 1
The process of digestion in the small intestine involves the breakdown of carbohydrates, proteins, and fats into their respective monomers. What is the name of the enzyme that breaks down starches into maltose?
Question 2
A 2.5-liter solution of 0.5 M NaCl is prepared by dissolving 1.25 g of NaCl in water. What is the molarity of the solution after adding 1.0 liter of 1.0 M HCl?
Question 3
In the context of cellular bio\logy, what is the primary function of the Golgi apparatus?
Question 4
In the context of genetics, what is the primary mechanism by which genetic variation is introduced into a population?
Question 5
A diagram of a plant cell is shown below. What is the primary function of the vacuole?
Question 6
A study on the genetic variation of a population found that 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 7
In a population of 1000 individuals, 200 are homozygous dominant (BB), 400 are heterozygous (Bb), and 400 are homozygous recessive (bb). If a new individual is born with the genotype Bb, what is the probability that the individual will express the dominant trait?
Question 8
A population of bacteria is growing in a culture medium. The growth rate of the population is 0.5 per hour. If the initial population size is 100, what is the population size after 4 hours?
Question 9
In a population of 1000 individuals, 200 have the genotype BB, 400 have the genotype Bb, and 400 have the genotype bb. What is the frequency of the B allele?
Question 10
A patient is diagnosed with a kidney disease that requires the removal of excess potassium ions from the body. Which of the following organs is primarily responsible for potassium excretion?
Question 11
In a typical nerve impulse, the action potential is generated by the rapid depolarization of the neuron membrane, which is caused by the opening of voltage-gated sodium channels. What is the name of the process by which the sodium channels are inactivated after the action potential has passed?
Question 12
A researcher is studying the structure of a protein and wants to determine the secondary structure of the protein. Which of the following techniques would be most appropriate?
Question 13
A cell is placed in a medium with a high concentration of glu\cose. Which of the following is a possible outcome?
Question 14
A 30-year-old woman presents with a 2-year history of recurrent vaginal discharge and itching. Her husband has a history of urethritis. What is the most likely diagnosis?
Question 15
In the context of evolutionary theory, what is the primary mechanism by which genetic drift acts to reduce genetic variation within a population?
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