science
Grade-10
Easy

Question

Congenital malformations are caused by which of the following mutagens?

  1. Carcinogens.
  2. Teratogens.
  3. Clastogens.
  4. None of the above.

hintHint:

The agents that effects growing fetus and cause birth defects.

The correct answer is: Teratogens.


    • Teratogen is a mutagen that affects a growing fetus and cause abnormalities
    • Birth defects are caused by teratogens
    • Teratogens can be any chemical or infection that effects the normal development of a fetus
    • Alcohol, cocaine, tobacco, etc are commonly known teratogens
    • Exposure of pregnant women to these teratogens can cause birth defects like spina bifida, cleft lip, etc
    • To understand more on teratogen: 
    • Carcinogen are agents that cause cancer
    • Clastogen are chemical agents that modify the structure and function of DNA causing mutation

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