MHT CET · BIOLOGY · STD 12 - 4. Molecular Basis of Inheritance

In eukaryotes, the anticodon of t-RNA that pairs with the start codon of mRNA during translation is

A UAA
B UCA
C UAC
D UUU

Verified Solution

Answer & Solution

Correct Answer

(C) UAC

Step-by-step Solution

Detailed explanation

Start codon or initiation codon on mRNA is AUG, which is the first codon in the transcribed mRNA that undergoes translation. The anticodons on t-RNA are complementary to codons on mRNA. Thus, the anticodon will be UAC.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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Interaction between		Type ofinteraction
Species A	Species B	Type ofinteraction
+	-	P
-	-	Q
+	0	R
-	0	S