Changes within the gene involve alteration in the bases are often referred to as point mutations since they affect only small segments comprising a base or a few bases in the genetic material. Such mutations may be base substitutions where a base pair is replaced by another without change in total number of base pairs in DNA molecule or frame shift mutations which arise due to addition or deletion of one or a few base pairs.

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Mutation Breeding

  • Patrick O. Ayiecho,
  • Julius O. Nyabundi

摘要

Changes within the gene involve alteration in the bases are often referred to as point mutations since they affect only small segments comprising a base or a few bases in the genetic material. Such mutations may be base substitutions where a base pair is replaced by another without change in total number of base pairs in DNA molecule or frame shift mutations which arise due to addition or deletion of one or a few base pairs.