POST UTME ESUT 2023 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A population of bacteria is growing exponentially. If the initial population size is 1000 and the growth rate is 0.05 per hour, what will be the population size after 5 hours?
A. 5000
B. 10000
C. 15000
D. 20000
Question 2
The process of cellular respiration involves the breakdown of glu\cose to produce energy in the form of
A. ATP
B. NADH
C. FADH2
D. Pyruvate
Question 3
A diagram of the human digestive system is shown below. Identify the part labeled B.
A. Esophagus
B. Stomach
C. Small intestine
D. Large intestine
Question 4
What is the primary function of the Golgi apparatus in a cell?
A. Protein synthesis
B. Cell signaling
C. Lipid synthesis
D. Protein modification
Question 5
A species of bird has a beak shape that is adapted for cracking open nuts. If the beak shape is determined by a \single gene with two alleles, one of which is dominant and the other recessive, what is the genotype of a bird with a beak shape that is intermediate between the two extremes?
A. Bb
B. BB
C. bb
D. Bb or bb
Question 6
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. 0.36
B. 0.64
C. 0.72
D. 0.88
Question 7
A cell is in the G2 phase of the cell cycle. What is the primary function of the centrioles during this phase?
A. To form the mitotic spindle
B. To separate the chromosomes
C. To regulate the cell cycle
D. To synthesize DNA
Question 8
In a diploid cell, what is the total number of chromosomes in the zygote?
A. 46
B. 92
C. 23
D. 46
Question 9
A 28-year-old woman is diagnosed with a condition characterized by the abnormal growth of cells in the connective tissue. Which of the following conditions is most likely responsible for her symptoms?
A. Fibromatosis
B. Fibrosarcoma
C. Desmoid tumor
D. Osteosarcoma
Question 10
A 0.1 M solution of NaOH is mixed with a 0.2 M solution of HCl. What is the pH of the resulting solution?
A. 1
B. 2
C. 3
D. 4
Question 11
A 31-year-old man is diagnosed with a condition characterized by the abnormal growth of cells in the epithelial tissue. Which of the following conditions is most likely responsible for his symptoms?
A. Squamous cell carcinoma
B. Adenocarcinoma
C. Small cell carcinoma
D. Large cell carcinoma
Question 12
A plant is undergoing asexual reproduction through vegetative propagation. What is the primary function of the apical meristem?
A. To produce new roots and stems
B. To regulate cell growth and division
C. To synthesize chlorophyll
D. To store starch and proteins
Question 13
A genetic disorder is caused by a mutation in the BRCA1 gene. What is the primary function of the BRCA1 protein?
A. To repair DNA damage
B. To regulate cell growth and division
C. To synthesize proteins
D. To store genetic information
Question 14
A patient is diagnosed with a bacterial infection caused by Staphylococcus aureus. Which of the following antibiotics is most effective against this bacterium?
A. Penicillin
B. Erythromycin
C. Ciprofloxacin
D. Vancomycin
Question 15
A 30-year-old woman is diagnosed with a condition characterized by the abnormal growth of cells in the connective tissue. Which of the following conditions is most likely responsible for her symptoms?
A. Fibromatosis
B. Fibrosarcoma
C. Desmoid tumor
D. Osteosarcoma

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