Question

biology nord ic qtr b continuous learning center - credit bearing (tutor)
chromosomal changes
which agent would cause the least damage to a chromosome?
radiation
ultrasound
x - rays
chemicals

Explanation:

Ultrasound uses high - frequency sound waves. These are non - ionizing and do not have enough energy to break the chemical bonds in DNA (which is part of chromosomes). Radiation (in general, ionizing radiation), X - rays (ionizing radiation), and chemicals (mutagens) can all cause more significant damage to chromosomes. Ionizing radiation can break DNA strands, and chemicals can cause mutations by reacting with DNA bases.

Answer:

ultrasound