POST UTME AFE BABALOLA UNIVERSITY 2020 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
The type of genetic variation that occurs when a new mutation arises in a population is known as
A. Genetic Drift
B. Mutation
C. Gene Flow
D. Natural Selection
Question 2
A diagram of a cell is shown below. What is the primary function of the mitochondria in this cell?
A. producing energy for the cell
B. regulating the cell's temperature
C. supporting the cell's structure
D. controlling the cell's growth
Question 3
The process by which an organism's genetic information is altered by external factors is known as
A. Genetic Drift
B. Mutation
C. Gene Flow
D. Epigenetics
Question 4
A diagram of a plant's xylem and phloem is shown below. What is the primary function of the xylem in this plant?
A. transporting water and minerals
B. transporting sugars and amino acids
C. supporting the plant's structure
D. regulating the plant's temperature
Question 5
A diagram of a plant cell is shown below. What is the function of the structure labeled 'A'?
A. Photosynthesis
B. Respiration
C. Transpiration
D. Osmosis
Question 6
What is the primary function of the blood in the transport system?
A. To transport oxygen and nutrients to the cells
B. To transport waste products and carbon dioxide from the cells
C. To regulate the body's pH levels
D. To synthesize proteins from amino acids
Question 7
In the process of photosynthesis, what is the byproduct of the light-dep\endent reactions?
A. ATP and NADPH
B. Glu\cose and oxygen
C. Water and carbon dioxide
D. Protons and electrons
Question 8
A population of 1000 individuals has a mean height of 170 cm. If the population is normally distributed, what is the probability that a randomly selected individual will have a height greater than 180 cm?
A. 0.1587
B. 0.3413
C. 0.5000
D. 0.8413
Question 9
A species of fish has a unique adaptation that allows it to survive in low-oxygen environments. What type of evolutionary adaptation is this an example of?
A. Convergent evolution
B. Divergent evolution
C. Adaptive radiation
D. Co-evolution
Question 10
In the xylem, water and minerals are transported from the roots to the leaves through the process of
A. Transpiration Pull
B. Root Pressure
C. Transpiration Push
D. Capillary Action
Question 11
A diagram of the human digestive system is shown below. Which part of the digestive system is responsible for absorbing nutrients from the food we eat?
A. A
B. B
C. C
D. D
Question 12
The type of eco\logical niche that is characterized by a specific set of environmental conditions is known as
A. Habitat
B. Niche
C. Eco\logical Niche
D. Environmental Niche
Question 13
What is the primary function of the xylem in plants?
A. To transport water and minerals from the roots to the leaves
B. To transport sugars and amino acids from the leaves to the roots
C. To regulate the plant's water potential
D. To synthesize chlorophyll from glu\cose
Question 14
The type of genetic variation that occurs when a new species arises from an existing one is known as
A. Speciation
B. Genetic Drift
C. Mutation
D. Gene Flow
Question 15
The process by which microorganisms cause disease in humans is known as
A. Infection
B. Toxicity
C. Allergenicity
D. Mutagenicity

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