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malfutka [58]
3 years ago
8

What is an exon?

Biology
2 answers:
Vesna [10]3 years ago
8 0

Answer:

The correct answer is: a part of DNA that codes for a functional protein.

Explanation:

Transcription is the process in which a DNA fragment is used to synthesize an mRNA strand that will later be used to code for a protein.

Not every part of the DNA codes for functional proteins, many fragments will be cut off through a process that <u>occurs right after transcription</u> and is called splicing.

During splicing, the <u>introns</u> (parts that do not code for functional proteins) in the DNA <u>are chopped off</u>, while the <u>exons remain and are stuck together</u>.

The beginning part of the DNA molecule is called a promoter and is where the RNA polymerase binds to in order to start transcription.

KonstantinChe [14]3 years ago
4 0

A part of the DNA that codes for a functional protein i believe

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