THE MOLECULAR BASIS OF INHERITANCE
GENE MUTATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Organisms that have been mutated or changed.
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Substances that cause mutations.
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New alleles made my mutations.
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Dangerous traits that can kill a species.
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Detailed explanation-1: -Anything that causes a mutation (a change in the DNA of a cell). 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.
Detailed explanation-2: -Mutations are also caused by chemical and physical mutagens Many chemicals that occur naturally in the environment have mutagenic properties and these have been supplemented in recent years with other chemical mutagens that result from human industrial activity. Physical agents such as radiation are also mutagenic.
Detailed explanation-3: -A mutagen is a substance or agent that causes DNA impairment that results in the alteration of the DNA sequence. This alteration of the DNA sequence is known as mutation. Any agent causing mutation is called mutagen. Mutagens can be physical mutagens, chemical mutagens, or biological mutagens.
Detailed explanation-4: -Types of mutagens include radiation, chemicals, and infectious agents. Mutations may be spontaneous in nature.