POST UTME BSU 2022 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
What is the primary mechanism by which the nervous system coordinates the movement of muscles?
A. Hormonal signals
B. Neurotransmitters
C. Electrical impulses
D. Mechanical forces
Question 2
A patient is diagnosed with a bacterial infection. The bacteria are resis\tant to multiple antibiotics. What is the likely cause of this resis\tance?
A. Horizontal gene transfer
B. Vertical gene transfer
C. Mutation
D. Gene flow
Question 3
The transport of water and minerals from the roots to the leaves of a plant is primarily through the _______.
A. Xylem
B. Phloem
C. Cortex
D. Pith
Question 4
A plant cell is placed in a solution with a high concentration of sucrose. What is the expected effect on the cell's turgor pressure?
A. The turgor pressure will increase
B. The turgor pressure will decrease
C. The turgor pressure will remain unchanged
D. The cell will undergo plasmolysis
Question 5
In the context of growth and development, what is the primary role of the pituitary gland?
A. Regulation of body temperature
B. Regulation of blood pressure
C. Regulation of growth and development
D. Regulation of metabolism
Question 6
In the process of cellular respiration, which of the following is the primary function of the electron transport chain?
A. To generate ATP
B. To produce NADH and FADH2
C. To reduce oxygen to water
D. To produce heat
Question 7
A plant has a mutation in its chloroplast DNA that affects the production of chlorophyll. What is the likely effect on the plant's photosynthetic rate?
A. Increased rate
B. Decreased rate
C. No effect
D. Variable effect
Question 8
A researcher is studying the genetic variation in a population of Drosophila melanogaster. What is the primary purpose of u\sing a Hardy-Weinberg equilibrium model?
A. To predict the frequency of alleles in a population
B. To determine the genetic diversity of a population
C. To identify the genetic basis of a trait
D. To estimate the population size
Question 9
The process of photosynthesis in plants involves the conversion of light energy into chemical energy. Which of the following is the primary reac\tant in the light-dep\endent reactions?
A. Water
B. Carbon dioxide
C. Light energy
D. ATP
Question 10
In a population of 1000 individuals, 70% are heterozygous for the gene controlling the flower color, while 30% are homozygous dominant. If 10% of the population is randomly sampled, what is the probability that at least one individual in the sample is homozygous dominant?
A. 0.3
B. 0.4
C. 0.5
D. 0.6
Question 11
The process of photosynthesis in plants involves the conversion of light energy into chemical energy. Which of the following is the primary product of the light-indep\endent reactions?
A. Glu\cose
B. Oxygen
C. ATP
D. NADPH
Question 12
A researcher is studying the effect of pH on the growth of a microorganism. The researcher measures the growth rate of the microorganism at different pH levels and plots the data on a graph. What type of graph would the researcher most likely use?
A. bar chart
B. pie chart
C. line graph
D. scatter plot
Question 13
The process of cellular division involves the replication of DNA and the separation of chromosomes. Which of the following is the primary function of the spindle fibers in mitosis?
A. To separate chromosomes
B. To replicate DNA
C. To condense chromosomes
D. To decondense chromosomes
Question 14
A population of rabbits is growing at a rate of 20% per year. If the initial population size is 100, what will be the population size after 5 years?
A. 1000
B. 2000
C. 4000
D. 8000
Question 15
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. Genetic Variation
D. Genetic Drift

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