what is the major difference between somatic and germline mutations
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ATI TEAS 7

ATI TEAS Science Questions

1. What is the major difference between somatic and germline mutations?

Correct answer: D

Rationale: The major difference between somatic and germline mutations is that germline mutations are usually inherited and can be passed on to offspring, while somatic mutations occur in non-reproductive cells and only affect the individual in which they occur. This means that germline mutations have the potential to be present in future generations, while somatic mutations do not.

2. What is the term for the phenomenon when two waves combine to form a new wave?

Correct answer: B

Rationale: The correct answer is B: Interference. Interference is the term used to describe the phenomenon when two waves combine to form a new wave. When waves interact constructively or destructively, they interfere with each other, resulting in a new wave pattern. Choice A, Diffraction, refers to the bending of waves around obstacles, not the combination of waves. Choice C, Refraction, is the bending of waves as they pass from one medium to another, not the combination of waves. Choice D, Dispersion, is the separation of light into its different colors, not the combination of waves.

3. Which organ plays a significant role in immune cell production and maturation?

Correct answer: C

Rationale: The bone marrow is the correct answer. It is the primary site for immune cell production and maturation. The bone marrow is responsible for generating various types of blood cells, including white blood cells crucial for the immune system's function. The liver, kidneys, and spleen have essential functions in the body, such as filtering blood, detoxification, and storage of blood, respectively. However, they are not primarily involved in immune cell production and maturation, making them incorrect choices for this question.

4. Which force opposes the relative motion between surfaces in contact?

Correct answer: B

Rationale: The correct answer is B: Frictional force. Frictional force opposes the relative motion between surfaces in contact. When two surfaces are in contact and one tries to slide over the other, the frictional force resists this motion, making it harder for the surfaces to move relative to each other. Choice A, tension force, is incorrect because tension force is a force transmitted through a string, rope, cable, or wire when it is pulled tight by forces acting from opposite ends. Choice C, gravitational force, is incorrect as it is the force of attraction between two masses. Choice D, magnetic force, is incorrect as it is the force exerted between magnetic objects.

5. Which part of the heart receives oxygenated blood from the lungs?

Correct answer: A

Rationale: The correct answer is A, the left atrium. The left atrium receives oxygenated blood from the lungs, which is then pumped into the left ventricle and out to the rest of the body. The right atrium receives deoxygenated blood from the body and sends it to the right ventricle to be pumped to the lungs for oxygenation. Choices B, C, and D are incorrect as they do not directly receive oxygenated blood from the lungs.

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