POST UTME ESUT 2021 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
In the context of digestion, what is the primary function of the pancreas?
A. Production of bile
B. Production of digestive enzymes
C. Absorption of nutrients
D. Storage of nutrients
Question 2
A 2.0 M solution of HCl is mixed with a 2.0 M solution of NaOH. If the reaction is complete, what is the pH of the resulting solution?
A. 0
B. 1
C. 2
D. 3
Question 3
A species of bird has a wing span of 2 meters. If the wing span is directly proportional to the square root of the bird's weight, what is the weight of the bird?
A. 10 kg
B. 20 kg
C. 30 kg
D. 40 kg
Question 4
A population of Drosophila melanogaster has a frequency of the recessive allele 'a' of 0.2. If the population is in Hardy-Weinberg equilibrium, what is the frequency of the homozygous recessive genotype 'aa'?
A. 0.36
B. 0.64
C. 0.16
D. 0.04
Question 5
In the context of respiratory gas exchange, what is the primary function of the alveolar-capillary membrane?
A. To regulate gas exchange
B. To maintain blood pH
C. To control blood pressure
D. To facilitate immune response
Question 6
The following data were collected on the effect of pH on the growth of Escherichia coli:
A. The bacteria will grow best at a pH of 7.
B. The bacteria will grow best at a pH of 9.
C. The bacteria will grow best at a pH of 11.
D. The data are insufficient to determine the effect of pH on bacterial growth.
Question 7
The diagram below shows a cross between two Drosophila melanogaster individuals. What is the probability that the offspring will be homozygous recessive for the gene 'a'?
A. 0.25
B. 0.5
C. 0.75
D. 0.9
Question 8
In the context of growth and regulation, what is the primary function of the thyroid gland?
A. Production of insulin
B. Production of growth hormone
C. Regulation of metabolism
D. Regulation of body temperature
Question 9
In the context of hormonal coordination, what is the primary function of the hypothalamus?
A. Regulation of body temperature
B. Stimulation of the pituitary gland
C. Inhibition of the adrenal gland
D. Regulation of appetite
Question 10
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. 0.36
D. 0.64
Question 11
The diagram below shows a cross between two individuals with different genotypes for the gene 'a'. What is the probability that the offspring will be homozygous recessive for the gene 'a'?
A. 0.25
B. 0.5
C. 0.75
D. 0.9
Question 12
In a study on the effect of light on plant growth, the following data were collected:
A. The plants grown in the dark will have a higher rate of photosynthesis than the plants grown in the light.
B. The plants grown in the light will have a higher rate of photosynthesis than the plants grown in the dark.
C. There is no difference in the rate of photosynthesis between the plants grown in the light and the plants grown in the dark.
D. The data are insufficient to determine the effect of light on plant growth.
Question 13
In asexual reproduction, the offspring are genetically identical to the parent organism. Which of the following methods of asexual reproduction is an example of this phenomenon?
A. Budding
B. Fragmentation
C. Binary fission
D. Parthenogenesis
Question 14
In the context of photosynthesis, what is the primary function of the chloroplast?
A. Production of glu\cose
B. Production of oxygen
C. Absorption of light energy
D. Storage of nutrients
Question 15
The process of meiosis results in the production of gametes with half the number of chromosomes as the parent organism. Which of the following stages of meiosis is responsible for this reduction in chromosome number?
A. Prophase I
B. Metaphase I
C. Anaphase I
D. Telophase II

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