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dmitriy555 [2]
2 years ago
6

Which of the following observations best supports the claim that mitochondria evolved

Biology
1 answer:
Arte-miy333 [17]2 years ago
8 0

no sure but mitochondria exchange substances witht he cytosol. probably wrong tho

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Howard is explaining the process by which DNA determines the structure of proteins. His explanation includes this statement. "Th
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Answer:

Transcription and RNA processing (splicing)

Explanation:

Although Howard is almost right, the DNA sequence does not precisely relate to the protein sequence. First of all, the DNA is transcribed to an primary mRNA molecule. Bur before the mRNA is ready to be translated into an amino acid sequence, it must be processed into a mature mRNA.

This includes adding a 3' poly A tail, and a 5' cap, and importantly for this question, splicing.

Splicing is the removal of non protein coding intermediate sequences called introns from the protein coding regions (exons) of a primary mRNA. This means that lots of the DNA sequence is not dictated by the final protein, as many of the intervening sequences have been removed by splicing.

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3 years ago
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