THE MOLECULAR BASIS OF INHERITANCE
DNA MAKES RNA MAKES PROTEIN
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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If the original DNA sequence is:ACC TGA TGT. What mutation happened in this sequence:AAC CTG ATG T
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Deletion
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Insertion
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Substitution
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None of these
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Explanation:
Detailed explanation-1: -If cytosine is added in the beginning, the nucleotide becomes : CAT GAT GAT G. The complementary base pairs are-GTA CTA CTA C.
Detailed explanation-2: -Therefore, frameshift mutations result in abnormal protein products with an incorrect amino acid sequence that can be either longer or shorter than the normal protein.
Detailed explanation-3: -If a DNA sequence is altered from TAGCTGA to TAGTGA, what kind of mutation has occurred? Deletion. Which mutation(s) would not change the remainder of the reading frame of a gene sequence that follows the mutation(s)? One addition and one deletion mutation.
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