ATI TEAS 7
TEAS 7 Science Practice Test
1. Which of the following is a true statement about dominance in genetics?
- A. All genes adhere to Mendel’s law of dominance.
- B. A dominant allele will always be expressed.
- C. When two dominant alleles are present, the resulting phenotype will express both traits.
- D. There are three or more alleles possible for all genes.
Correct answer: B
Rationale: In genetics, dominance refers to the relationship between two different alleles of a gene where one allele (dominant) masks the expression of another allele (recessive) in an individual's phenotype. The correct statement about dominance is that a dominant allele will always be expressed in the phenotype, even in the presence of a recessive allele. This means that if an individual has at least one dominant allele for a particular trait, that trait will be expressed. Choice A is incorrect because not all genes follow Mendel’s law of dominance; exceptions do exist. Choice C is incorrect because when two dominant alleles are present, only one will be expressed due to complete dominance. Choice D is incorrect as there can be more than three alleles for a gene, and not all genes have three or more alleles.
2. Based on the information in the announcement, what might the reader assume about how the university determined the lunch schedule?
- A. The university arranged the schedule alphabetically, according to the name of each department.
- B. The university checked with the departments in advance to make sure faculty members would be amenable to the change.
- C. The university checked to see when the most faculty members from each department would be entering the canteen.
- D. The university was more concerned about crowding in the canteen and simply decided to establish different times for each department.
Correct answer: C
Rationale: The announcement states that the university polled the various departments about schedules to determine a recommended roster for each department to visit the canteen for lunch. This indicates that the university checked to see when the most faculty members from each department would be entering the canteen to offset the crowding issue. Therefore, the correct choice is C. Choices A, B, and D are incorrect because there is no mention of arranging the schedule alphabetically, checking with departments in advance for agreement, or simply establishing different times without considering faculty members' schedules in the announcement. The university's approach was to tailor the lunch schedule based on each department's peak entry times to manage the crowding problem effectively.
3. Which verb tense is most appropriate to complete this sentence: 'By next week, I _____ the project'?
- A. I will be finishing
- B. I will have finished
- C. I am finishing
- D. I would finish
Correct answer: B
Rationale: The correct answer is option B, 'I will have finished'. This choice correctly expresses a future event (finishing the project) that will be completed before another future point in time (next week). The future perfect tense 'will have finished' is used to show an action that will be completed before a specified future time. Choice A, 'I will be finishing', is incorrect as it indicates an ongoing action that will still be in progress by next week, which is not the intended meaning. Choice C, 'I am finishing', is incorrect as it indicates a present action that is ongoing, not a future event. Choice D, 'I would finish', is incorrect as 'would' is used for hypothetical situations or polite requests, which is not suitable in this context of a future project completion.
4. What is the result when the number 1 is raised to ANY power?
- A. One
- B. Itself
- C. Zero
- D. Two
Correct answer: A
Rationale: The correct answer is A: 'One.' When the number 1 is raised to any power, the result is always 1. This is a fundamental mathematical property where any number raised to the power of 0 equals 1. Choices B, C, and D are incorrect. Choice B 'Itself' is vague and does not provide a clear mathematical result. Choice C 'Zero' is incorrect as 1 raised to any power is not zero. Choice D 'Two' is incorrect as the result of raising 1 to any power is always 1, not 2.
5. Given the double bar graph shown below, which of the following statements is true?
- A. Group A is negatively skewed, while Group B is approximately normal.
- B. Group A is positively skewed, while Group B is approximately normal.
- C. Group A is approximately normal, while Group B is negatively skewed.
- D. Group A is approximately normal, while Group B is positively skewed.
Correct answer: B
Rationale: The correct answer is B. In a double bar graph, Group A is positively skewed, meaning its data is clustered on the left and has a tail extending to the right. On the other hand, Group B displays a normal distribution where the data is evenly distributed around the mean. Choices A, C, and D are incorrect as they inaccurately describe the skewness and distribution of the data in Group A and Group B.
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