POST UTME REDEEMERS UNIVERSITY 2020 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A cell in interphase has a DNA content of 2C. If the cell undergoes mitosis, what will be the DNA content of the daughter cells?
A. 2C
B. 4C
C. 6C
D. 8C
Question 2
A bio\logist is studying the classification of living organisms. Which of the following kingdoms is characterized by the presence of cell walls made of chitin?
A. Animalia
B. Fungi
C. Plantae
D. Protista
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. 0.36
B. 0.64
C. 0.72
D. 0.84
Question 4
A kidney stone is formed when the concentration of which of the following subs\tances in the urine exceeds its solubility?
A. Urea
B. Calcium oxalate
C. Magnesium ammonium phosphate
D. Sodium chloride
Question 5
A cell is in the process of undergoing mitosis. Which of the following stages is characterized by the condensation of chromatin into visible chromosomes?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
Question 6
A diagram of the human eye is shown below. What is the primary function of the structure labeled 'A'?
A. To focus light on the retina
B. To detect movement
C. To regulate pupil size
D. To produce tears
Question 7
A diagram shows a cross between two pea plants, one with the genotype 'Tt' and the other with the genotype 'tt'. If the cross is between two heterozygotes, what is the probability that the offspring will have the genotype 'TT'?
A. 0.25
B. 0.5
C. 0.75
D. 0.9
Question 8
A researcher isolates a bacterium that exhibits the following characteristics: gram-positive, catalase-positive, and motile. Which of the following is the most likely genus?
A. Bacillus
B. Escherichia
C. Pseudomonas
D. Staphylococcus
Question 9
A person has a visual acuity of 6/60. What does this indicate about their visual ability?
A. They can see objects clearly at 6 meters
B. They can see objects clearly at 60 meters
C. They have a visual acuity of 6/6
D. They have a visual acuity of 6/60
Question 10
A population of 1000 individuals has a mean height of 170 cm and a s\tandard deviation of 10 cm. If the population is normally distributed, what is the probability that a randomly selected individual will have a height greater than 190 cm?
A. 0.001
B. 0.01
C. 0.1
D. 0.5
Question 11
A patient is experiencing symptoms of a visual defect. Which of the following sense organs is responsible for detecting light and transmitting visual information to the brain?
A. Eye
B. Ear
C. Nose
D. Tongue
Question 12
In the context of classification of living things, what is the primary criterion for distinguishing between prokaryotes and eukaryotes?
A. Cell wall composition
B. Presence of membrane-bound organelles
C. Type of cellular respiration
D. Size and complexity of cells
Question 13
A diagram of a human reproductive system is shown below. What is the primary function of the structure labeled 'C'?
A. To produce sperm
B. To produce eggs
C. To regulate hormone levels
D. To facilitate fertilization
Question 14
A plant exhibits the following characteristics: leaves are alternate, stipules are absent, and the stem is herbaceous. Which of the following is the most likely family?
A. Asteraceae
B. Fabaceae
C. Poaceae
D. Rosaceae
Question 15
The following diagram shows a cross-section of a plant root. What is the function of the xylem in this diagram?
A. To transport water and minerals from the roots to the leaves
B. To transport sugars and other organic compounds from the leaves to the roots
C. To provide structural support to the plant
D. To regulate the plant's water balance

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