In genetics, a mutagen is a physical or chemical agent that changes the genetic
material, usually DNA, of an organism and thus increases the frequency of
mutations above the natural background level...
Several chemicals and environmental toxins are responsible for changes in ... as
mutagens, and mutagens that cause cancers are known as carcinogens.
These cancer-causing mutagens include chemical carcinogens, viruses, and
various ... Examples of carcinogens activated in this way include the fungal toxin
Jun 14, 1999 ... We are going to spend some time talking about how mutations can ... are not but
we will see they can be very important in causing cancer. .... It is possible to
distinguish chemical mutagens by their modes of action; some of these cause ....
We will look at examples of each type of repair, the mechanisms, the ...
DNA changes caused by mutagens may harm cells and cause certain diseases,
such as cancer. Examples of mutagens include radioactive substances, x-rays,
ultraviolet radiation, and certain chemicals. National Cancer ...
May 3, 2016 ... Some of the gene products that have been linked to cancer are ..... Point
mutations also can be caused by radiation or chemicals that disrupt the DNA. ...
the gene is to cause cancer, the name tumour suppressor gene wrongly ...
Oct 5, 2012 ... Background: Mutagens cause changes (mutations) in the genetic ... Examples of
DNA viral mutagens are Hepatitis B virus and Human herpes virus. ... on the fact
that several chemicals capable of causing cancer in animals ...
Chemical mutagens are classified as alkylating agents, cross-linking agents, and
... Aromatic amines are mutagens that can cause bladder cancer. ... the health
risks linking smoking with several types of cancer and heart disease. ... Name.
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Oct 11, 2014 ... A list of currently known carcinogens, substances, chemicals, and products
known to cause cancer in humans. ... Common examples of non-radioactive
carcinogens are inhaled asbestos, certain dioxins, and tobacco smoke.
Jul 14, 2014 ... Physical And Chemical Mutagen: Mechanism & Examples. ... Some mutagens
can cause aneuploidy and change the number of chromosomes ...