To determine which amino acid sequence can be encoded by the DNA sequence containing the repeating sequence "TTC TTC TTC TTC", we first need to translate this DNA sequence into RNA and then translate the RNA into amino acids.
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Transcription: The DNA sequence "TTC" would be transcribed into mRNA. DNA sequence "TTC" corresponds to mRNA sequence "AAC" (since A pairs with U in RNA, T with A, C with G, and G with C).
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Repeating Sequence: Given the repeating sequence "TTC TTC TTC TTC," the resulting mRNA sequence would be "AAC AAC AAC AAC".
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Translation: Now we will translate the mRNA codons into amino acids. The codon "AAC" translates to the amino acid Asparagine (Asn).
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Check the options provided:
- ser-ser-glu-glu (serine and glutamic acid: not possible)
- lys-arg-lys-arg (lysine and arginine: not possible)
- lys-lys-lys-lys (lysine: not possible)
- lys-arg-glu-lys (lysine, arginine, and glutamic acid: not possible)
Since none of the provided options correspond to Asparagine or reflect the repeating structure derived from "TTC," it appears that none of the listed amino acid sequences can be coded from the specified DNA sequence "TTC TTC TTC TTC".
If you are looking for a specific valid option based on the repetition and results:
- The sequence derived would consistently represent Asparagine, and none of the given choices match or can arise from the "TTC" repetition.
Therefore, the answer based on the provided sequences would be: None of the above.