THE MOLECULAR BASIS OF INHERITANCE
STRUCTURE OF NUCLEIC ACIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The antisense strand on the DNA molecule coding for three codons of a gene isTATCGCACGWhat are the anticodons of the three tRNA molecules that correspond to this sequence?
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UAU, CGC and ACG
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ATA, GCG and TGC
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AUA, GCG and UGC
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TAT, CGC and ACG
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Explanation:
Detailed explanation-1: -So the right answer is option ‘UAG’.
Detailed explanation-2: -A sequence of three consecutive bases in a tRNA molecule which specifically binds to a complementary codon sequence in mRNA is known an anticodon.
Detailed explanation-3: -Antisense is based on the fact that messenger RNA (mRNA) is in the “sense” direction from 5′ to 3′. Antisense is a limited sequence of DNA in the antisense direction 3′–5′ designed from knowing the sequence of a target gene.
Detailed explanation-4: -The template strand of DNA has AAA sequence, which will be transcribed to mRNA as UUU. Then. the anticodon on tRNA to this mRNA would have AAA sequence. Thus, the correct answer is ‘AAA’.
There is 1 question to complete.