OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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UGG CTC GUC CUT
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TGG CAC GTC CTA
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TGG CUC GTC CTU
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UGG CAC GUC CUA
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Detailed explanation-1: -DNA utilizes four bases, adenine (A), guanine (G), cytosine (C), and thymine (T), in its code. RNA also uses four bases. However, instead of using ‘T’ as DNA does, it uses uracil (U). Therefore, if your DNA sequence is 3’ T C G T T C A G T 5’, the mRNA sequence would be 5’ A G C A A G U C A 3’.
Detailed explanation-2: -The sequence of bases on m−RNA molecule synthesized on the GCATATGGA strand of DNA is CGUAUACCU. Within the RNA double helix, A forms 2 hydrogen bonds with U on the opposite strand, and G forms 3 hydrogen bonds with C on the opposite strand.
Detailed explanation-3: -Solution: When a DNA strand with the sequence AACGTAACG is transcribed, the resultant sequence of the mRNA molecule synthesized is UUGCAUUGC. This is based on the paring of nitrogenous bases-adenine pairs with thymine (in DNA) and uracil (in RNA) and guanine with cytosine.