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Question: Answered & Verified by Expert
In a given DNA segment, ATG ACC AGG ACC CCA ACA, the first base gets mutated. The effect of this on coding by this DNA segment will result in
BiologyMolecular Basis of InheritanceNEET
Options:
  • A Complete change in the type as well as sequence of amino acid
  • B Change in the first amino acid only
  • C No change in the sequence
  • D One amino acid less in the protein
Solution:
1541 Upvotes Verified Answer
The correct answer is: Change in the first amino acid only
For the given DNA segment, if the first base gets mutated, then there will be a change in the first amino acid only because each amino acid consists of a triplet code consisting of three nucleotides bases. When for a given DNA segment the first base gets mutated then only that particular part consisting of three bases and specific for a particular amino acid will change.

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