THE MOLECULAR BASIS OF INHERITANCE
DNA MAKES RNA MAKES PROTEIN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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anticodons
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codons
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exons
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introns
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Detailed explanation-1: -Introns are non-coding sections of an RNA transcript, or the DNA encoding it, which are spliced out, or removed, before the RNA molecule is translated into a protein.
Detailed explanation-2: -Some noncoding DNA regions, called introns, are located within protein-coding genes but are removed before a protein is made. Regulatory elements, such as enhancers, can be located in introns. Other noncoding regions are found between genes and are known as intergenic regions.
Detailed explanation-3: -Final answer: Removal of introns and joining the exons in a defined order in a transcription unit is called splicing.
Detailed explanation-4: -These intervening sequences are called introns, and they are removed before the mature mRNA leaves the nucleus. The remaining regions of the transcript, which include the protein-coding regions, are called exons, and they are spliced together to produce the mature mRNA.
Detailed explanation-5: -Introns are the non-coding regions that are removed from the mRNA during splicing. Only the exons, which actually code for genes, are retained.