ATI TEAS 7
Biology
1. Describe the mechanism by which genes are transmitted from parents to offspring.
- A. Blending of parental genes, resulting in an average of their traits.
- B. Random assortment of alleles during meiosis, leading to unique combinations in each offspring.
- C. Inheritance of solely dominant alleles, masking the influence of recessive ones.
- D. Direct transfer of both parental genomes, creating identical copies of the parents.
Correct answer: B
Rationale: Rationale: A) Blending of parental genes, resulting in an average of their traits, is not an accurate description of how genes are transmitted. In reality, genes are not blended but rather passed down in discrete units. B) Random assortment of alleles during meiosis is the correct mechanism by which genes are transmitted from parents to offspring. During meiosis, homologous chromosomes separate, and alleles are randomly distributed to the gametes, leading to unique combinations of genes in each offspring. C) Inheritance of solely dominant alleles, masking the influence of recessive ones, is not an accurate representation of gene transmission. Offspring inherit alleles from both parents, and the expression of dominant or recessive traits depends on the specific combination of alleles. D) Direct transfer of both parental genomes, creating identical copies of the parents, is not how genes are transmitted. Offspring inherit a unique combination
2. Which word completes the sentence "He was ____ by the unexpected turn of events."
- A. elated (joyful)
- B. bewildered (confused)
- C. vindicated (justified)
- D. apathetic (uninterested)
Correct answer: B
Rationale: "Bewildered" best describes the confusion caused by the unexpected events.
3. What does the term "dilution" refer to in a solution?
- A. Adding more solvent to decrease concentration
- B. Adding more solute to increase concentration
- C. Reducing the temperature to increase solubility
- D. Increasing pressure to increase solubility
Correct answer: A
Rationale: Dilution involves adding more solvent to a solution to decrease the concentration of solute. The other choices do not accurately describe dilution
4. Which of the following is a unit of measurement for energy?
- A. Watt (W)
- B. Joule (J)
- C. Newton (N)
- D. Kilogram (kg)
Correct answer: b
Rationale: Energy is measured in Joules (J) in the SI unit system.
5. In a neutral atom, the number of electrons:
- A. Must be equal to the number of protons.
- B. Must be less than the number of protons.
- C. Must be greater than the number of neutrons.
- D. Can vary depending on the atom's temperature.
Correct answer: A
Rationale: Must be equal to the number of protons - For electrical neutrality, the positive charge of protons must be balanced by the negative charge of an equal number of electrons.
6. What is the relationship between mass and inertia?
- A. Mass is a measure of inertia
- B. Mass has no relation to inertia
- C. Inertia is a measure of weight
- D. Inertia increases with decreasing mass
Correct answer: a
Rationale: Mass is a measure of the amount of matter in an object and is directly related to its inertia.
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