Nursing Elites

1. What is the term for an organism with two different alleles for a gene?

• A. Homozygous
• B. Heterozygous
• C. Dominant
• D. Recessive

Correct answer: B

Rationale: Homozygous refers to an organism with two identical alleles for a gene, either both dominant or both recessive. Heterozygous, the correct answer, refers to an organism with two different alleles for a gene, one dominant and one recessive. Dominant and recessive describe the relationship between alleles, where dominant alleles are expressed over recessive alleles in heterozygous individuals. Therefore, the term for an organism with two different alleles for a gene is 'heterozygous.'

2. Which of the following answer choices is spelled correctly?

• A. intrude
• B. aclimate
• C. wisen
• D. alude

Correct answer: A

Rationale: The correct spelling is 'intrude,' which means to enter a place or situation where one is unwelcome or not invited. The other answer choices, 'aclimate,' 'wisen,' and 'alude,' are misspelled. 'Aclimate' should be spelled as 'acclimate,' meaning to become accustomed to a new climate or environment. 'Wisen' is likely intended to be 'wisen' but is not a recognized word. 'Alude' should be spelled as 'allude,' meaning to suggest or call attention to indirectly.

3. A rocket engine expels hot gases backwards. What principle explains the rocket's forward motion?

• A. Newton's first law of motion
• B. Newton's second law of motion
• C. Newton's third law of motion
• D. Law of conservation of energy

Correct answer: C

Rationale: Newton's third law of motion states that for every action, there is an equal and opposite reaction. In the case of a rocket engine expelling hot gases backwards, the action is the expulsion of gases, and the reaction is the forward motion of the rocket. The hot gases being expelled act as the action force, propelling the rocket in the opposite direction as the reaction force, resulting in the rocket's forward motion. Newton's first law of motion (Choice A) pertains to inertia, stating that an object in motion will stay in motion unless acted upon by an external force. Newton's second law of motion (Choice B) relates force, mass, and acceleration, which is not directly applicable to the scenario of a rocket engine propulsion. The law of conservation of energy (Choice D) is a fundamental principle stating that energy cannot be created or destroyed but can only be transformed, which does not directly explain the forward motion of the rocket in this context.

4. What kind of error is present in the following sentence? This summer, I'm planning to travel to Italy, take a Mediterranean cruise, go to Pompeii, and eat a lot of Italian food.

• A. Parallelism
• B. Sentence fragment
• C. Misplaced modifier
• D. Subject-verb agreement

Correct answer: A

Rationale: The correct answer is A, parallelism. The sentence contains a parallelism error because the verbs in the list are not in the same grammatical form. In a parallel structure, all items in a list should be formatted consistently. In this case, 'take a Mediterranean cruise' and 'going to Pompeii' are not parallel. 'Go to Pompeii' should be corrected to 'visit Pompeii' to maintain parallelism. Choices B, C, and D are incorrect because the sentence is a complete sentence, does not have any misplaced modifiers, and does not involve subject-verb agreement errors.

5. What is the process of breaking down and rebuilding bone tissue called?

• A. Ossification
• B. Remodeling
• C. Calcification
• D. Osteoporosis

Correct answer: B

Rationale: The correct answer is 'Remodeling.' Remodeling is the process of breaking down and rebuilding bone tissue. Ossification is the process of bone formation, not breaking down and rebuilding bone tissue. Calcification involves the deposition of calcium salts in tissues, but it is not specifically related to breaking down and rebuilding bone tissue. Osteoporosis is a condition characterized by decreased bone density leading to increased bone fragility, not the process of breaking down and rebuilding bone tissue.

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