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Which of the following are found only in organisms containing polycistronic mRNA ?


( A ) deletion mutations
( B ) polar mutations
( C ) missense mutations
( D ) temperature sensitive mutations

1 Answer

Ans: (B) Polar Mutations
Polar mutations affect expression of doconstream genes or operons. It can also affect the expression of the gene in which it occurs, if it occurs in a transcribed region. These mutations tend to occur early within the sequence of genes and can be nonsense frameshift or insertion mutations.
answered Nov 17, 2016 by suganyadevi.p
edited Nov 21, 2016 by suganyadevi.p
 

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