POST UTME LEAD CITY UNIVERSITY 2017 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
In a cell undergoing mitosis, what is the stage at which the chromosomes are most condensed?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
Question 2
The process of digestion in the human body involves the breakdown of food into smaller molecules that can be absorbed and utilized by the body. Which of the following enzymes is responsible for breaking down proteins?
A. Amylase
B. Lipase
C. Tryp\sin
D. Lactase
Question 3
A 35-year-old woman presents with a 2-year history of progressive weakness and fatigue. Her hemoglobin level is 8 g/dL, and her mean corpuscular volume (MCV) is 80 fL. Which of the following is the most likely cause of this patient's anemia?
A. Iron deficiency anemia
B. Vitamin B12 deficiency anemia
C. Folate deficiency anemia
D. Sickle cell anemia
Question 4
The xylem tissue in plants is responsible for transporting water and minerals from the roots to the leaves. What is the primary mechanism by which this occurs?
A. Transpiration pull
B. Root pressure
C. Capillary action
D. Osmosis
Question 5
A plant is placed in a greenhouse with a temperature of 25°C and a relative humidity of 60%. What is the expected rate of transpiration?
A. High
B. Medium
C. Low
D. Variable
Question 6
The process of digestion involves the breakdown of large molecules into smaller ones. What is the primary enzyme responsible for breaking down proteins?
A. Amylase
B. Lipase
C. Pep\sin
D. Tryp\sin
Question 7
A 45-year-old man presents with a 5-year history of progressive shortness of breath and fatigue. His chest X-ray shows a large pleural effusion. Which of the following is the most likely cause of this patient's condition?
A. Lung cancer
B. Chronic obstructive pulmonary disease (COPD)
C. Pulmonary embolism
D. Pleural effusion due to tuberculosis
Question 8
A species of bird has a beak length of 5 cm. If the beak length is normally distributed with a mean of 4 cm and a s\tandard deviation of 0.5 cm, what is the probability that a randomly selected bird will have a beak length greater than 5.5 cm?
A. 0.001
B. 0.01
C. 0.1
D. 0.5
Question 9
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. 0.16
D. 0.04
Question 10
A cell undergoing mitosis has a chromosome number of 46. If this cell undergoes meiosis, what is the expected number of chromosomes in the gametes?
A. 23
B. 46
C. 92
D. 138
Question 11
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. 0.84
Question 12
The process of photosynthesis in plants involves the conversion of light energy into chemical energy in the form of glu\cose. Which of the following is a byproduct of this process?
A. Oxygen
B. Carbon dioxide
C. Water
D. Nitrogen
Question 13
A plant with the genotype 'Rr' is crossed with a plant with the genotype 'RR'. What is the probability that the offspring will have the genotype 'RR'?
A. 0.25
B. 0.5
C. 0.75
D. 0.9
Question 14
A diagram of a plant's xylem is shown below. What is the function of the tracheids?
A. Transport of water and minerals
B. Storage of food
C. Support of the plant
D. Protection of the plant
Question 15
In a population of 1000 individuals, 70% are heterozygous for the gene controlling flower color, 20% are homozygous dominant, and 10% are homozygous recessive. What is the expected frequency of the recessive allele in this population?
A. 0.15
B. 0.20
C. 0.25
D. 0.30

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