LABORATORY REVIEW
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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ATGAAACGCACGCAG
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UACUUUGCGUGCGAC
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TACUUUGCGTGCGTC
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TACTTTGCGTGCGTC
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Detailed explanation-1: -The sequence of nucleotides in the mRNA molecule is read consecutively in groups of three. RNA is a linear polymer of four different nucleotides, so there are 4 × 4 × 4 = 64 possible combinations of three nucleotides: the triplets AAA, AUA, AUG, and so on.
Detailed explanation-2: -The sequence for AACGTAACG in mRNA molecule synthesized after transcription from a DNA strand shall be UUGCAUUGC.
Detailed explanation-3: -The normal sequence of mRNA transcribed from a particular DNA strand is. 5’-AUG GUC GGA CUG GGC GUC UAA-3’. As a result of mutation in DNA, the mRNA sequence is changed to. 5’-AUG GUC UGA CUG GGC GUC UAA-3’.
Detailed explanation-4: -The template strand of DNA contains the nucleotide base sequence ATGCCA.