OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following statements regarding mRNA is correct?
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Exons are included in the protein sequence, while introns are left out
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Introns are included in the protein sequence, while exons are left out
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Exons and Introns can both be included or left out depending on the protein
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Exons and Introns are both part of the mRNA sequence, but only exons are part of the rRNA and tRNA
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Explanation:
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: -So, the correct answer is ‘Codons are present in mRNA and anticodons in tRNA’.
Detailed explanation-3: -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.
There is 1 question to complete.