OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which is the mRNA molecule that would be transcribed from this DNA template:TGGCAAGTACGT
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ACCGTTCATGCA
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UGGCAAGUACGU
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UCCGUUCUUGCU
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ACCGUUCAUGCA
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Explanation:
Detailed explanation-1: -The sequence for AACGTAACG in mRNA molecule synthesized after transcription from a DNA strand shall be UUGCAUUGC. In an RNA strand, the genetic code follows the sequence of A-U, G-C, and T-A. Thus, by this genetic coding, the correct answer is option B.
Detailed explanation-2: -Transcription is the first step in gene expression. It involves copying a gene’s DNA sequence to make an RNA molecule. Transcription is performed by enzymes called RNA polymerases, which link nucleotides to form an RNA strand (using a DNA strand as a template).
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