ATI TEAS 7
Biology
1. Which type of mutation involves a change in the number of chromosomes?
- A. Point mutation
- B. Frameshift mutation
- C. Missense mutation
- D. Aneuploidy
Correct answer: D
Rationale: Rationale: A) Point mutation: Involves a change in a single nucleotide base pair within the DNA sequence. B) Frameshift mutation: Involves the insertion or deletion of nucleotides, causing a shift in the reading frame of the genetic code. C) Missense mutation: Involves a single nucleotide change that results in a codon that codes for a different amino acid. D) Aneuploidy: Involves a change in the number of chromosomes, where an individual may have an extra chromosome (trisomy) or a missing chromosome (monosomy). Aneuploidy can lead to genetic disorders such as Down syndrome (trisomy 21) or Turner syndrome (monosomy X).
2. What is the relationship between mass and weight on Earth's surface?
- A. Mass and weight are equal
- B. Mass is greater than weight
- C. Weight is greater than mass
- D. Mass and weight are not related
Correct answer: a
Rationale: On Earth's surface, mass and weight are directly proportional but not equal, as weight is the force due to gravity acting on an object's mass.
3. Which element is used in insulin and promotes glucose uptake into cells for energy production?
- A. Zinc
- B. Chromium
- C. Manganese
- D. Iron
Correct answer: B
Rationale: Chromium aids in insulin's function, enhancing glucose uptake by cells and regulating blood sugar levels.
4. What is the balanced chemical equation for the reaction between sulfuric acid (H2SO4) and potassium hydroxide (KOH)?
- A. H2SO4 + KOH → K2SO4 + H2O
- B. 2H2SO4 + 2KOH → 2K2SO4 + 2H2O
- C. H2SO4 + 2KOH → K2SO4 + 2H2O
- D. H2SO4 + 2KOH → K2SO4 + H2O
Correct answer: c
Rationale: The coefficients are adjusted to balance the number of atoms on both sides of the equation.
5. What is the process of converting DNA into a protein called?
- A. Transcription
- B. Translation
- C. Replication
- D. Mutation
Correct answer: A
Rationale: Transcription is the process of converting DNA into a molecule called messenger RNA (mRNA). This mRNA molecule carries the genetic information from DNA to the ribosomes, where it is used to make proteins.
6. Which additional information would be MOST relevant to the passage's argument?
- A. A detailed biography of a historical figure with no analysis of their impact on society.
- B. A timeline of technological advancements throughout history with no connection to social consequences.
- C. A case study of how historical knowledge informed the development of a successful solution to a contemporary problem.
- D. A statistical analysis of economic trends without any reference to historical events or context.
Correct answer: C
Rationale: Choice C aligns with the passage's theme by demonstrating how historical knowledge directly impacted a contemporary solution, further supporting the argument for history's value.
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