In the anticodon of a tRNA molecule, the base hypoxanthine [inosine] can pair with all of the following except:
1. Adenine
2. Guanine
3. Cytosine
4. Thymine
Subtopic:  Genetic Code |
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There is only a single mRNA codon for tryptophan, that is
1. UAC 2. UGG
3. UUU 4. UAG
Subtopic:  Genetic Code |
From NCERT
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