POST UTME CRAWFORD UNIVERSITY 2023 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
In a eukaryotic cell, the process of photosynthesis occurs in the
A. Mitochondria
B. Chloroplast
C. Nucleus
D. Endoplasmic Reticulum
Question 2
In the context of cell division, what is the primary function of the centrioles during the prophase stage of mitosis?
A. To form the spindle fibers
B. To replicate the DNA
C. To condense the chromosomes
D. To form the nuclear envelope
Question 3
The Hardy-Weinberg principle states that allele and genotype frequencies in a population will remain cons\tant from generation to generation in the absence of other evolutionary influences. Which of the following is a consequence of the Hardy-Weinberg principle?
A. Genetic drift is the primary mechanism of evolution.
B. Genetic variation is increased in the population.
C. The frequency of a dominant allele is always greater than the frequency of a recessive allele.
D. The population is in equilibrium, meaning that allele and genotype frequencies remain cons\tant.
Question 4
In the context of tissue structure, what is the primary function of the basement membrane?
A. To provide structural support
B. To regulate cell growth
C. To facilitate cell migration
D. To maintain tissue integrity
Question 5
The nervous system is responsible for transmitting and proces\sing information. Which of the following is a type of neural transmission?
A. Electrical transmission.
B. Chemical transmission.
C. Mechanical transmission.
D. Thermal transmission.
Question 6
In the context of classification of living things, what is the primary function of the kingdom level?
A. To group organisms based on their cell structure
B. To group organisms based on their genetic makeup
C. To group organisms based on their metabolic processes
D. To group organisms based on their eco\logical niches
Question 7
A diagram of a cell's mitotic spindle is shown below. What is the primary function of the mitotic spindle?
A. Separation of chromosomes during cell division
B. Transport of water and minerals
C. Cell signaling
D. Cell division
Question 8
The diagram below shows the structure of a plant cell. Identify the part labeled A.
A. Cell Wall
B. Chloroplast
C. Vacuole
D. Nucleus
Question 9
A diagram of the human eye is shown below. Which part of the eye is responsible for detecting light?
A. Cornea
B. Iris
C. Retina
D. Lens
Question 10
In the context of microorganisms and diseases, what is the primary function of the immune system?
A. To produce antibodies to fight off pathogens
B. To produce cytokines to activate immune cells
C. To produce interferons to inhibit viral replication
D. To produce complement proteins to lyse pathogens
Question 11
In the context of evolutionary theories, what is the primary mechanism driving the process of speciation in allopatric populations?
A. Genetic drift
B. Gene flow
C. Natural selection
D. Mutation
Question 12
In the process of osmoregulation, the kidneys play a crucial role in maintaining the balance of electrolytes and water in the body. Which of the following is a function of the kidneys in osmoregulation?
A. Regulating blood pressure through the renin-angioten\sin-aldosterone system.
B. Excreting excess electrolytes and water through the urine.
C. Producing hormones that stimulate the release of water from the body.
D. Maintaining the balance of electrolytes and water in the body through the regulation of electrolyte excretion.
Question 13
The nervous system of an organism is responsible for
A. Regulating body temperature
B. Controlling voluntary movements
C. Transmitting nerve impulses
D. Producing hormones
Question 14
In a eukaryotic cell, the process of cell division that results in the production of four daughter cells is known as
A. Mitosis
B. Meiosis
C. Binary Fission
D. Endosymbiosis
Question 15
In the process of respiration, what is the primary function of the mitochondria?
A. To produce ATP through cellular respiration
B. To break down glu\cose into carbon dioxide and water
C. To synthesize proteins from amino acids
D. To store genetic information in the form of DNA

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