LABORATORY REVIEW
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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exons
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euchromatin
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Introns
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Heteochromatin
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Detailed explanation-1: -When genes are transcribed, those exons and introns are included in the initial messenger RNA products. However, introns are removed during the process called splicing so only exons are included in the mature mRNA and used to dictate what proteins are produced.
Detailed explanation-2: -Definition. An exon is a region of the genome that ends up within an mRNA molecule. Some exons are coding, in that they contain information for making a protein, whereas others are non-coding. Genes in the genome consist of exons and introns.
Detailed explanation-3: -By definition, exons and introns are sequences in a protein-coding gene region of a double-stranded DNA molecule (dsDNA) that are expressed as proteins, or intervening sequences not so expressed.