OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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This is a sequence of nucleotides from a section of mRNA.AUGAAACGCACGCAGFrom which DNA sequence has it been transcribed?
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ATGAAACGCACGCAG
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UACUUUGCGUGCGAC
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TACUUUGCGTGCGTC
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TACTTTGCGTGCGTC
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Explanation:
Detailed explanation-1: -DNA has the pyrimidine thymine; RNA has the pyrimidine uracil. Adenine pairs with thymine/uracil and guanine with cytosine. Thus, the sequence in mRNA transcribed from a piece of DNA having a sequence ATTGGATCT will be UAACCUAGA; option E is correct.
Detailed explanation-2: -Initiation codons in bacterial mRNAs are preceded by a specific sequence (called a Shine-Delgarno sequence, after its discoverers) that aligns the mRNA on the ribosome for translation by base-pairing with a complementary sequence near the 3ยด terminus of 16S rRNA.
There is 1 question to complete.