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Zina [86]
4 years ago
13

Which most likely contributed least to Mexico City's air pollution? A. uranium B. coal C. oil D. natural gas

Biology
2 answers:
Aloiza [94]4 years ago
6 0
D. natural gas Because its the only one that involves air pollution
Virty [35]4 years ago
3 0
Oil the answer is c ur welcome sorry if late :)
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Which two codons in the mRNA represent the amino acid phenylalanine
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UUU and UUC

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Information that encodes certain functional products called PROTEIN are present in the DNA molecule. However, the information needs to be expressed via the processes of transcription and translation. Transcription is the synthesis of a mRNA using a DNA template.

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Hence, in the case of phenylalanine amino acid, codons UUU and UUC both specify it. This means that whenever UUU and UUC are read during translation, a phenylalanine is added to the peptide chain.

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