POST UTME GREENFIELD UNIVERSITY 2020 Biology | Objective

Are you preparing for POST UTME GREENFIELD UNIVERSITY exams? Reviewing past questions is one of the most effective ways to guarantee a high score. This practice hub features authentic 2020 Biology (Objective) questions designed to simulate the real exam environment.

Practice these randomly selected questions to test your readiness.

Question 1
In a eukaryotic cell, what is the primary function of the Golgi apparatus?
A. Protein synthesis
B. Cell signaling
Correct C. Lipid modification and sorting
D. DNA replication

Correct Answer: C

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Question 2
A diagram of a plant's xylem and phloem is shown below. What is the primary function of the xylem?
Correct A. Transport of water and minerals
B. Transport of sugars and amino acids
C. Storage of starch and proteins
D. Cell signaling

Correct Answer: A

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Question 3
In a human eye, what is the primary function of the retina?
Correct A. Detection of light and color
B. Focu\sing of light
C. Pupil dilation and constriction
D. Eye movement

Correct Answer: A

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Question 4
A diagram of the human circulatory system is shown below. What is the primary function of the heart?
Correct A. Pumping of blood throughout the body
B. Regulation of blood pressure
C. Filtering of blood
D. Production of blood cells

Correct Answer: A

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Question 5
In a plant cell, what is the primary function of the mitochondria?
A. Protein synthesis
B. Cell signaling
Correct C. Energy production through cellular respiration
D. DNA replication

Correct Answer: C

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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'?
Correct A. 0.64
B. 0.36
C. 0.16
D. 0.04

Correct Answer: A

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Question 7
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'?
Correct A. 0.5
B. 0.25
C. 0.75
D. 0.33

Correct Answer: A

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Question 8
A solution of glu\cose (C6H12O6) is prepared by dissolving 20g of glu\cose in 100ml of water. What is the concentration of the solution in g/L?
Correct A. 0.2
B. 0.4
C. 0.6
D. 0.8

Correct Answer: A

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Question 9
A plant with the genotype 'Tt' is crossed with a plant with the genotype 'tt'. What is the probability that the offspring will have the genotype 'Tt'?
Correct A. 0.5
B. 0.25
C. 0.75
D. 0.33

Correct Answer: A

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Question 10
A solution of sodium chloride (NaCl) is prepared by dissolving 10g of NaCl in 50ml of water. What is the concentration of the solution in g/L?
Correct A. 0.4
B. 0.6
C. 0.8
D. 1.0

Correct Answer: A

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Question 11
The process by which cells divide to produce two daughter cells is known as _______.
Correct A. Mitosis
B. Meiosis
C. Binary Fission
D. Endosymbiosis

Correct Answer: A

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Question 12
The structure that connects the eye to the brain is the _______.
Correct A. Optic Nerve
B. Optic Disc
C. Pupil
D. Iris

Correct Answer: A

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Question 13
The theory that explains how species evolve over time is the _______.
Correct A. Theory of Evolution
B. Theory of Natural Selection
C. Theory of Genetic Drift
D. Theory of Mutation

Correct Answer: A

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Question 14
The process by which an organism's genetic information is passed from one generation to the next is known as _______.
Correct A. Genetic Inheri\tance
B. Genetic Mutation
C. Genetic Variation
D. Genetic Drift

Correct Answer: A

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Question 15
The structure that contains the genetic material of an organism is the _______.
Correct A. Nucleus
B. Mitochondria
C. Chloroplast
D. Ribosome

Correct Answer: A

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Question 16
In the xylem transport system, what is the primary function of the xylem parenchyma cells?
Correct A. Storage of water and minerals
B. Transport of sugars and amino acids
C. Production of ethylene gas
D. Maintenance of turgor pressure

Correct Answer: A

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Question 17
What is the term for the process by which an organism's genetic information is passed from one generation to the next?
A. Mutation
B. Genetic drift
C. Natural selection
Correct D. Heritability

Correct Answer: D

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Question 18
In the classification of living things, what is the rank that comes after kingdom and before phylum?
A. Domain
B. Kingdom
C. Phylum
Correct D. Class

Correct Answer: D

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Question 19
What is the term for the process by which an organism's cells become specialized to perform specific functions?
Correct A. Differentiation
B. Mitosis
C. Meiosis
D. Symbiosis

Correct Answer: A

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Question 20
In the human body, what is the term for the system that consists of the heart, blood vessels, and blood?
A. Nervous system
Correct B. Circulatory system
C. Respiratory system
D. Digestive system

Correct Answer: B

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Question 21
The process of symbiotic relationship between fungi and plant roots is known as
Correct A. Mycorrhizal association
B. Lichenization
C. Epiparasitism
D. Commensalism

Correct Answer: A

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Question 22
The diagram below shows the structure of a neuron. Which part of the neuron is responsible for transmitting signals to other neurons?
A. D\endrite
Correct B. Axon
C. Cell body
D. Myelin sheath

Correct Answer: B

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Question 23
The diagram below shows the water cycle. Which process is responsible for the formation of clouds?
A. Evaporation
Correct B. Condensation
C. Precipitation
D. Runoff

Correct Answer: B

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Question 24
The diagram below shows the structure of a mitochondrion. Which part of the mitochondrion is responsible for generating energy for the cell?
A. Mitochondrial matrix
Correct B. Cristae
C. Outer membrane
D. Intermembrane space

Correct Answer: B

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Question 25
The diagram below shows the structure of a DNA molecule. Which part of the DNA molecule is responsible for storing genetic information?
Correct A. Double helix
B. Sugar molecule
C. Phosphate group
D. Nitrogenous base

Correct Answer: A

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