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FinnZ [79.3K]
3 years ago
15

What biology studies dna rna and proteins

Biology
1 answer:
alexandr402 [8]3 years ago
5 0

Answer:

that would be genetics i belive.

Explanation:

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What effect on the evolution of mammals was caused when the continents drifted apart?
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The correct answer is option B, that is, promoter, operator, gene.

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Any gene, which codes for an enzyme or a structural protein is termed as a structural gene, in the lac operon, a structural gene codes for three distinct kinds of enzymes. A short sequence of DNA is situated just in front of the structural gene, which is known as the operator. An operator functions as a switch for transcription, that is, it monitors whether the process of transcription will take place or not.  

Just in front of an operator, a sequence of a promoter is present, and for the transcription and translation of all the structural genes, the RNA polymerase needs to combine first with the promoter. In case, if no transcription is to take place, then the operator allows the repressor to bind with it and prevent the attachment of RNA polymerase with the promoter. Hence, the correct sequence of a prokaryotic operon is a promoter, operator, and gene.  

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