How does genetic mutation arise ?
Answers
Answer:
Genetic mutation arise by the addition and deletion of base sequence from DNA,by exposure of DNA to ultraviolet radiation,by treating DNA with various chemical such as 5 bromouracil,nitrous acid,arcidine orange etc
Explanation:
Addition or deletion of base sequence
mutation occur due to addition or deletion of base sequence to or from a DNA molecule.This ultimately result in changing the open reading frame.This ultimately lead to the production of defective protein
Exposure of DNA to ultraviolet Radiation
When DNA is exposed to ultraviolet ray a cyclobutane ring of tymidine dimer is formed which leads to genetic mutation
Treatment of DNA by Arcidine orange
Arcidine act as intercalating agent which get inserted between the adjacent base pairs resulting in genetic mutation