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Multiple Choice
Which of the following agents would cause the least damage to a chromosome?
A
Ultrasound
B
Radiation
C
Chemicals
D
X-rays
Verified step by step guidance
1
Understand the context of the question: The problem is asking which agent causes the least damage to a chromosome. Chromosomes are structures within cells that contain DNA, and damage to them can lead to mutations or cell death.
Review the potential effects of each agent: Radiation, chemicals, and X-rays are known to cause significant damage to DNA and chromosomes by inducing mutations, breaks, or chemical alterations. Ultrasound, on the other hand, is primarily used for imaging and does not directly interact with DNA or chromosomes in a damaging way.
Consider the mechanism of action: Radiation and X-rays are forms of ionizing radiation, which can break chemical bonds in DNA and cause double-strand breaks. Chemicals can interact with DNA to cause mutations or structural changes. Ultrasound uses sound waves, which do not have the energy to directly alter DNA or chromosomes.
Evaluate the biological impact: Ionizing radiation (e.g., X-rays) and chemicals are well-documented for their ability to cause chromosomal damage. Ultrasound, however, is generally considered safe for biological tissues and does not cause direct chromosomal damage under normal conditions.
Conclude based on evidence: Based on the mechanisms and biological impacts, ultrasound would cause the least damage to a chromosome compared to radiation, chemicals, or X-rays.