POST UTME DELSU 2023 Biology | Objective
Practice these randomly selected questions to test your readiness.
Question 1
The process of photosynthesis in plants involves the conversion of light energy into chemical energy, resulting in the production of glu\cose and oxygen. Which of the following stages of photosynthesis is responsible for the absorption of light energy?
Question 2
In a study on the effect of pH on enzyme activity, the following data were collected:
Question 3
The process by which an organism's genetic information is passed from one generation to the next is called
Question 4
The process of osmoregulation in animals involves the regulation of water and ion balance in the body. Which of the following types of cells is responsible for the reabsorption of water and ions in the kidneys?
Question 5
A geneticist is studying the inheri\tance of a trait in a family. Which of the following modes of inheri\tance would be most likely to result in a pattern of inheri\tance that is consistent with the Hardy-Weinberg principle?
Question 6
In a eukaryotic cell, the process of mitosis is initiated by the breakdown of the nuclear envelope, resulting in the release of histone proteins and the condensation of chromatin into visible chromosomes. Which of the following stages of mitosis is characterized by the alignment of chromosomes at the metaphase plate?
Question 7
The process of mitosis in eukaryotic cells results in the production of two daughter cells that are genetically identical to the parent cell. Which of the following stages of mitosis is characterized by the separation of sister chromatids?
Question 8
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'?
Question 9
The nervous system is responsible for transmitting signals from sensory receptors to the brain, where they are interpreted and processed. Which of the following types of neurons is responsible for transmitting signals from sensory receptors to the spinal cord?
Question 10
In a eukaryotic cell, the process of cellular respiration occurs in which of the following organelles?
Question 11
A 2.5 L flask contains 1.5 L of a solution with a concentration of 0.5 M. What is the number of moles of solute in the solution?
Question 12
A 2.5 g sample of a compound containing only carbon and hydrogen is analyzed by combustion. The amount of carbon dioxide produced is 1.8 g, and the amount of water produced is 0.9 g. What is the empirical formula of the compound?
Question 13
A researcher is studying the genetic variation in a population of Drosophila melanogaster. Which of the following genetic markers would be most useful for identifying genetic variation?
Question 14
A population of rabbits is growing at a rate of 20% per year. If the initial population is 100, what will be the population after 3 years?
Question 15
In a population of Drosophila melanogaster, the frequency of the recessive allele 'b' for black body color is 0.2. If the population is in Hardy-Weinberg equilibrium, what is the frequency of the homozygous dominant genotype 'B'B?
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