SPELL­ING MIS­TAKES

DNA’s 4 chem­i­cal let­ters make ge­netic ‘ spell­ing mis­takes’ in can­cer

India Today - - SPORT -

MU­TA­TION

When a change in a ge­netic let­ter takes place, like A chang­ing into C.

DELE­TION

When part of the DNA se­quence goes miss­ing.

IN­VER­SION

When a por­tion of the DNA se­quence is re­versed.

IN­SER­TION

When ex­tra ge­netic al­pha­bets are added to the se­quence.

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