POST UTME IGBINEDION UNIVERSITY 2018 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A patient is experiencing difficulty breathing due to a blockage in the airway. Which of the following structures is most likely to be affected?
A. Trachea
B. Bronchi
C. Lungs
D. Diaphragm
Question 2
The classification of living things is based on what characteristics?
A. Cell structure and function
B. Metabolism and energy production
C. Genetic makeup and evolution
D. Body shape and size
Question 3
A diagram of a plant's xylem and phloem is shown below. What is the primary function of the xylem?
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 rest of the plant
C. To provide structural support to the plant
D. To regulate the plant's water potential
Question 4
The human immune system is responsible for protecting the body against pathogens. Which of the following is a type of white blood cell that plays a key role in the immune response?
A. Macrophage
B. Neutrophil
C. Lymphocyte
D. Eo\sinophil
Question 5
The process of mitosis is a type of cell division that results in two daughter cells that are genetically identical to the parent cell. Which of the following is a characteristic of the G1 phase of the cell cycle?
A. DNA replication occurs
B. The cell grows and prepares for cell division
C. The chromosomes condense and become visible
D. The nuclear envelope breaks down
Question 6
The discovery of the structure of DNA by James Watson and Francis Crick is considered one of the most impor\tant scientific breakthroughs of the 20th century
A. True
B. False
C. Maybe
D. Undecided
Question 7
The human eye has a lens that changes shape to focus on objects at different dis\tances. What is the term for this process?
A. Accommodation
B. Convergence
C. Divergence
D. Focu\sing
Question 8
The process of cellular respiration involves the breakdown of glu\cose to produce what?
A. ATP and water
B. Glu\cose and oxygen
C. Carbon dioxide and energy
D. Nitrogen and phosphorus
Question 9
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 necessary condition for the Hardy-Weinberg principle to hold?
A. Random mating
B. Large population size
C. No mutation
D. No gene flow
Question 10
A 30-year-old female presents with a 2-year history of recurrent episodes of abdominal pain. Her physical examination reveals a palpable mass in the right lower quadrant. Which of the following is the most likely diagnosis?
A. App\endicitis
B. Diverticulitis
C. Crohn's disease
D. Ulcerative colitis
Question 11
In a plant with a diploid sporophyte and a haploid gametophyte, what is the term for the process by which the gametophyte produces gametes?
A. Meiosis
B. Mitosis
C. Gametogenesis
D. Sporogenesis
Question 12
A diagram of a plant cell is shown below. What is the function of the structure labeled 'A'?
A. To synthesize proteins.
B. To store genetic information.
C. To regulate cell growth and division.
D. To transport materials in and out of the cell.
Question 13
The process by which an organism's genetic information is passed from one generation to the next is called
A. Heritability
B. Inheri\tance
C. Variation
D. Mutation
Question 14
A researcher is studying the effects of a new hormone on plant growth. Which of the following systems is most likely to be affected?
A. Nervous system
B. Endocrine system
C. Circulatory system
D. Digestive system
Question 15
A 35-year-old female presents with a 6-month history of amenorrhea. Her physical examination reveals a palpable mass in the left breast. Which of the following is the most likely diagnosis?
A. Breast cyst
B. Fibroadenoma
C. Ductal carcinoma in situ
D. Invasive ductal carcinoma

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