Nursing Elites

1. An object is initially at rest. Which of the following will definitely NOT cause it to move?

• A. A constant force acting on it
• B. No force acting on it
• C. A force that increases in magnitude over time
• D. A force that decreases in magnitude over time

Correct answer: B

Rationale: The correct answer is B because if an object is initially at rest and no force is acting on it, it will remain at rest due to Newton's First Law of Motion. This law states that an object at rest will stay at rest unless acted upon by an external force. Choices A, C, and D all involve forces acting on the object, which would cause it to move according to Newton's laws of motion. Choice A, a constant force acting on the object, would cause it to move at a constant velocity. Choice C, a force that increases in magnitude over time, would accelerate the object. Choice D, a force that decreases in magnitude over time, would decelerate the object.

2. What type of genetic variation is caused by changes in the DNA sequence?

• A. Epigenetic variation
• B. Phenotypic variation
• C. Genotypic variation
• D. Behavioral variation

Correct answer: C

Rationale: A) Epigenetic variation refers to changes in gene expression that do not involve alterations in the DNA sequence itself. These changes can be influenced by environmental factors. B) Phenotypic variation refers to differences in observable traits or characteristics of an organism, which can be influenced by both genetic and environmental factors. C) Genotypic variation is caused by changes in the DNA sequence, such as mutations or genetic recombination. These changes directly impact the genetic information carried by an organism. D) Behavioral variation refers to differences in behavior among individuals of the same species, which can be influenced by genetic, environmental, and experiential factors.

3. What is the structure of the following sentence? The restaurant is unconventional because it serves both Chicago-style pizza and New York-style pizza.

• A. Simple
• B. Compound
• C. Complex
• D. Compound-complex

Correct answer: C

Rationale: The sentence is classified as complex because it contains one independent clause 'The restaurant is unconventional' and one dependent clause 'because it serves both Chicago-style pizza and New York-style pizza.' A simple sentence consists of just one independent clause, a compound sentence contains two or more independent clauses, and a compound-complex sentence has at least two independent clauses and one or more dependent clauses. In this sentence, the dependent clause 'because it serves both Chicago-style pizza and New York-style pizza' cannot stand alone as a complete sentence, making it a complex sentence structure.

4. Which sentence uses the passive voice correctly?

• A. The letter was written by Mary.
• B. John built the house.
• C. She gave the flowers to him.
• D. They were eating dinner.

Correct answer: A

Rationale: Option A correctly uses the passive voice by placing the emphasis on the object (letter) that received the action (was written) rather than the subject performing the action. The phrase 'by Mary' indicates the agent who performed the action, making it a clear example of the passive voice structure. Choices B, C, and D are all in the active voice, where the subject performs the action directly on the object. In the context of identifying the correct usage of the passive voice, option A stands out as the only suitable example.

5. What is the smallest unit that can encode for a trait?

• A. A codon
• B. A gene
• C. A nucleotide
• D. A chromosome

Correct answer: B

Rationale: The correct answer is B - a gene. Genes are the smallest units that can encode for a trait as they contain the specific instructions for producing a particular characteristic or protein. While codons are sequences of nucleotides that code for specific amino acids in a protein, they are not the smallest unit that encodes for a trait. Nucleotides are the building blocks of DNA and RNA, and chromosomes are made up of DNA and proteins, containing many genes.

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