POST UTME CRAWFORD UNIVERSITY 2022 Biology | Objective
Practice these randomly selected questions to test your readiness.
Question 1
A scientist is studying the evolution of a population of birds. The population is currently in a state of genetic equilibrium. What is the expected change in the frequency of the dominant allele 'B' if the population size is reduced by 50%?
Question 2
A plant has a photosynthetic rate of 10 μmol CO2/s. If the concentration of CO2 is 400 ppm, what is the rate of photosynthesis in units of μmol CO2/m2/s?
Question 3
The process of mitosis results in the production of two daughter cells that are genetically identical to the parent cell. Which of the following stages of mitosis is responsible for the separation of chromosomes into the daughter cells?
Question 4
In a population of E. coli, the average generation time is 30 minutes. If the population is doubling every 10 minutes, what is the growth rate cons\tant (r) in units of 1/min?
Question 5
The system of the body that is responsible for the production of hormones that regulate the reproductive cycle is called
Question 6
A 2.5 L solution of 0.5 M NaCl is diluted to 5 L. What is the new concentration of NaCl in the solution?
Question 7
The human body is composed of various types of tissues, including epithelial, connective, muscle, and nervous tissues. Which of the following is a characteristic of epithelial tissue?
Question 8
The process by which an organism's genetic information is passed from one generation to the next is called
Question 9
The nervous system is responsible for transmitting signals from sensory receptors to the brain. Which of the following types of neurons is primarily involved in this process?
Question 10
The classification of living organisms is based on their evolutionary relationships. Which of the following is an example of a monophyletic group?
Question 11
The process by which an organism's genetic information is altered by external factors is called
Question 12
In a eukaryotic cell, the process of cell division that results in the production of four daughter cells, each with the same number and kind of chromosomes as the parent cell, is called
Question 13
A 50 g sample of glu\cose is dissolved in 100 mL of water. What is the concentration of glu\cose in units of g/L?
Question 14
The structure of the human eye is adapted for the detection of light and color. Which part of the eye is responsible for focu\sing light onto the retina?
Question 15
The type of tissue that is found in the walls of blood vessels and is responsible for the contraction and relaxation of the vessels is called
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