POST UTME GREENFIELD UNIVERSITY 2020 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
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. 0.5
B. 0.25
C. 0.75
D. 0.33
Question 2
A 2.0 L flask contains 1.0 mol of an ideal gas at 27°C. If 1.0 mol of another ideal gas is added to the flask, what is the new temperature of the mixture?
A. 25.0°C
B. 27.0°C
C. 30.0°C
D. 35.0°C
Question 3
In the classification of living things, what is the rank that comes after kingdom and before phylum?
A. Domain
B. Kingdom
C. Phylum
D. Class
Question 4
A geneticist is studying the inheri\tance of a particular trait in a population of plants. Which of the following genetic principles would be most relevant to this study?
A. The law of indep\endent assortment
B. The law of segregation
C. The law of dominance
D. The law of incomplete dominance
Question 5
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
D. Heritability
Question 6
A diagram of the human circulatory system is shown below. What is the primary function of the heart?
A. Pumping of blood throughout the body
B. Regulation of blood pressure
C. Filtering of blood
D. Production of blood cells
Question 7
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
B. Axon
C. Cell body
D. Myelin sheath
Question 8
In a eukaryotic cell, what is the primary function of the Golgi apparatus?
A. Protein synthesis
B. Cell signaling
C. Lipid modification and sorting
D. DNA replication
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. 0.16
B. 0.36
C. 0.64
D. 0.84
Question 10
A plant cell has a cell wall composed of cellulose. Which of the following is a characteristic of cellulose?
A. It is a polysaccharide
B. It is a protein
C. It is a polysaccharide composed of glu\cose units
D. It is a polysaccharide composed of fructose units
Question 11
The structure that connects the eye to the brain is the _______.
A. Optic Nerve
B. Optic Disc
C. Pupil
D. Iris
Question 12
The structure that contains the genetic material of an organism is the _______.
A. Nucleus
B. Mitochondria
C. Chloroplast
D. Ribosome
Question 13
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'?
A. 0.5
B. 0.25
C. 0.75
D. 0.33
Question 14
In the human body, what is the term for the system that consists of the heart, blood vessels, and blood?
A. Nervous system
B. Circulatory system
C. Respiratory system
D. Digestive system
Question 15
A plant has a photosynthetic rate of 10.0 μmol CO2 s-1. If the plant is exposed to light for 5.0 hours, how much CO2 is fixed?
A. 9,000 μmol
B. 12,000 μmol
C. 15,000 μmol
D. 18,000 μmol

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