POST UTME DELSU 2019 Biology | Objective

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Question 1
In the context of classification of living things, which of the following is a characteristic of Archaea?
A. They are prokaryotic cells
B. They are eukaryotic cells
C. They have a true nucleus
D. They have a cell wall
Question 2
The process of photosynthesis in plants involves the conversion of light energy into chemical energy in the form of
A. glu\cose
B. oxygen
C. carbon dioxide
D. water
Question 3
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. 0.48
B. 0.32
C. 0.16
D. 0.64
Question 4
A 2.0-mL sample of a solution containing 0.1 M NaCl is added to a 10.0-mL sample of a solution containing 0.05 M NaOH. What is the concentration of the resulting solution?
A. 0.005 M
B. 0.01 M
C. 0.015 M
D. 0.02 M
Question 5
A patient has been diagnosed with a bacterial infection. The patient's symptoms include fever, chills, and a productive cough. The patient's white blood cell count is elevated. What type of bacteria is most likely responsible for this infection?
A. Staphylococcus aureus
B. Escherichia coli
C. Pseudomonas aeruginosa
D. Klebsiella pneumoniae
Question 6
A bacterium is placed in a medium with a pH of 7.5. If the bacterium has a pH optimum of 6.5, what is the expected growth rate?
A. Slow growth
B. Moderate growth
C. Rapid growth
D. No growth
Question 7
The human kidney filters waste products from the blood and excretes them in the form of
A. urine
B. sweat
C. saliva
D. mucus
Question 8
In a eukaryotic cell, the process of meiosis results in the production of four haploid daughter cells. What is the primary function of the synaptonemal complex during meiosis?
A. To facilitate the exchange of genetic material between homo\logous chromosomes
B. To regulate the separation of sister chromatids
C. To ensure the accurate alignment of chromosomes during metaphase
D. To control the condensation of chromatin
Question 9
The process of meiosis in a diploid organism results in the production of four haploid cells, each with half the number of chromosomes as the parent cell. Which of the following is a characteristic of the chromosomes in these haploid cells?
A. They are identical in terms of their genetic makeup
B. They are genetically unique from one another
C. They have the same number of chromosomes as the parent cell
D. They are all genetically identical
Question 10
The process of respiration in humans involves the breakdown of glu\cose to produce energy. Which of the following is the primary product of glycolysis?
A. Pyruvate
B. Lactic acid
C. Ethanol
D. Carbon dioxide
Question 11
A patient has been diagnosed with a viral infection. The patient's symptoms include a sore throat, fever, and a rash. The patient's white blood cell count is normal. What type of virus is most likely responsible for this infection?
A. Influenza virus
B. Herpes simplex virus
C. Human immunodeficiency virus
D. Rubella virus
Question 12
Which of the following is an example of a tissue in the human body?
A. Nerve cell
B. Muscle cell
C. Epithelial cell
D. Connective tissue cell
Question 13
In the context of excretion and osmoregulation, which of the following is a function of the kidneys?
A. Regulation of blood pH
B. Regulation of blood pressure
C. Removal of waste products
D. Regulation of body temperature
Question 14
The process of digestion in the human body involves the breakdown of complex molecules into simpler ones through the action of
A. enzymes
B. hormones
C. nervous system
D. circulatory system
Question 15
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. 0.64
B. 0.36
C. 0.16
D. 0.04

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