Mutagens cause a change in the genetic code in the cells of the developing embryo.

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Mutagens are agents that cause changes in the genetic material, i.e., DNA, such as nucleotide substitutions, deletions, insertions, rearrangements or amplifications. These mutations can occur during the development of an embryo and affect the growth and function of various tissues and organs. Examples of mutagens include radiation, chemicals, viruses, and some drugs.

Mutagens Cause a Change in the Genetic Code in the Cells