POST UTME NILE UNIVERSITY 2020 Biology | Objective
Practice these randomly selected questions to test your readiness.
Question 1
A diagram of a simple harmonic motion is shown below. Identify the type of motion.
Question 2
A geneticist is studying the inheri\tance of a particular trait in a population of mice. The trait is determined by a \single gene with two alleles: B and b. The B allele is dominant and codes for the production of a protein that gives the mice a black coat color, while the b allele is recessive and codes for a protein that gives the mice a white coat color. What is the expected genotype and phenotype of a mouse that is homozygous recessive for the gene?
Question 3
The cell membrane is a selectively permeable membrane that allows certain subs\tances to pass through while restricting others. Which of the following is an example of a subs\tance that can pass through the cell membrane?
Question 4
A diagram of the human eye is shown below. What is the function of the lens?
Question 5
The process by which plants release water vapor into the air is known as:
Question 6
A person has a rare condition that affects the production of melanin. What is the name of the condition that this person has?
Question 7
A 0.5 M solution of NaOH is prepared by dissolving 40 grams of NaOH in 1000 mL of water. What is the pH of the solution?
Question 8
The process of digestion in the human body involves the breakdown of complex molecules into simpler ones. Which of the following enzymes plays a key role in this process?
Question 9
In the context of cellular respiration, what is the primary function of the electron transport chain?
Question 10
A plant's ability to undergo photosynthesis is dep\endent on the presence of which of the following?
Question 11
The human eye's ability to focus on objects at varying dis\tances is due to the shape of the lens changing from a convex to a concave shape. This process is known as
Question 12
A bio\logist is studying the structure of a protein that is involved in the regulation of gene expression. The protein has a specific binding site for a particular DNA sequence. What is the likely function of this binding site?
Question 13
The human body is home to trillions of microorganisms that play a crucial role in our health and well-being. Which of the following is an example of a beneficial microorganism that lives in the human gut?
Question 14
The process of photosynthesis in plants involves the conversion of light energy into chemical energy in the form of which of the following?
Question 15
A plant has a root system that is 50% efficient in absorbing water. If the plant requires 100 mL of water per day, how much water will it absorb from the soil?
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