In a given $DNA$ segment $ATGACC\ AGG\ ACC\ CCA\ ACA$, the first base gets mutated. The effect of this on coding by this $DNA$ segment will result in

  • A

    Complete change in the type as well as sequence of amino acids

  • B

    Change in the first amino acid only

  • C

    No change in the squence

  • D

    One amino acid less in the protein

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