Question

Make a list of the environmental and chemical agents that can alter DNA.

Short answer

The list of the environmental and chemical agents that can alter DNA are:

Name of the agent	Type
Ultraviolet rays	Environmental agent
Ionizing radiations	Environmental agent
Alkylating agents	Chemical agent
Base analogs	Chemical agent
Acridine dyes	Chemical agent
Deaminating agents	Chemical agent

Step-by-step solution

Environmental agents

There are many agents present in the environment that can alter DNA, i.e., bring about mutation. These can cause physical damage to the DNA and are also classified as physical agents. Examples are UV rays, Ionizing radiations.

Chemical agents

The agents that are chemical in nature and have the capacity to generate mutation or damage and alter DNA are called chemical agents of mutation or chemical mutagens. The four major groups of chemical mutagens are Alkylating agents, Base analogs, Acridine dyes, and Deaminating agents.