Question:
Which one of the following codons will NOT pair with anticodon of t-RNA?
Which one of the following codons will NOT pair with anticodon of t-RNA?
Show Hint
Stop codons do not have tRNA; they are recognized by release factors.
Updated On: Feb 9, 2026
- AUU
- UAG
- UUU
- CUC
Hide Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Step 1: Understanding codon–anticodon pairing.
During translation, mRNA codons pair with complementary anticodons present on tRNA molecules to add specific amino acids to the growing polypeptide chain.
Step 2: Identifying stop codons.
Some codons do not code for any amino acid and hence do not have corresponding tRNA anticodons. These are called stop codons.
The three stop codons are UAA, UAG, and UGA.
Step 3: Analysis of options.
(A) AUU: Codes for isoleucine and pairs with tRNA.
(B) UAG: Correct — it is a stop codon and does not pair with any tRNA anticodon.
(C) UUU: Codes for phenylalanine and pairs with tRNA.
(D) CUC: Codes for leucine and pairs with tRNA.
Step 4: Conclusion.
The codon that does NOT pair with any tRNA anticodon is UAG.
During translation, mRNA codons pair with complementary anticodons present on tRNA molecules to add specific amino acids to the growing polypeptide chain.
Step 2: Identifying stop codons.
Some codons do not code for any amino acid and hence do not have corresponding tRNA anticodons. These are called stop codons.
The three stop codons are UAA, UAG, and UGA.
Step 3: Analysis of options.
(A) AUU: Codes for isoleucine and pairs with tRNA.
(B) UAG: Correct — it is a stop codon and does not pair with any tRNA anticodon.
(C) UUU: Codes for phenylalanine and pairs with tRNA.
(D) CUC: Codes for leucine and pairs with tRNA.
Step 4: Conclusion.
The codon that does NOT pair with any tRNA anticodon is UAG.
Was this answer helpful?
0
0
Top Questions on Plant Growth Regulators
- Which plant hormone is mainly responsible for apical dominance?
- GATE AG - 2026
- Agriculture
- Plant Growth Regulators
- Match the following
List - I List - II A) Kinetin IV) Adenine derivatives B) ABA (Abscisic Acid) I) Terpenes C) GA3 (Gibberellic Acid) I) Terpenes D) IAA (Indole Acetic Acid) III) Indole compound - AP EAPCET - 2025
- Botany
- Plant Growth Regulators
- Match the following
- AP EAPCET - 2025
- Botany
- Plant Growth Regulators
- Describe physiological effects and applications of ethylene.
- Maharashtra Class XII - 2025
- Biology
- Plant Growth Regulators
- What is the full form of IAA?
- Maharashtra Class XII - 2025
- Biology
- Plant Growth Regulators
View More Questions
Questions Asked in MHT CET exam
- Given that: \[ \cot \left( \frac{A + B}{2} \right) \cdot \tan \left( \frac{A - B}{2} \right) \] and the equation involving coordinates: \[ \frac{x}{2} + \frac{y}{3} + \frac{2}{6} - 1 = 0 \] Find the area of \( \Delta ABC = 2 \).
- MHT CET - 2025
- Coordinate Geometry
- What is the standard electrode potential of the half-reaction: \[ \text{Cu}^{2+} + 2e^- \rightarrow \text{Cu} \, (\text{solid})? \] Given that the standard electrode potential for the half-reaction: \[ \text{Ag}^+ + e^- \rightarrow \text{Ag} \, (\text{solid}) \quad \text{is} \, +0.80 \, \text{V}. \] Also, the cell potential for the following reaction is: \[ \text{Cu}^{2+} + 2\text{Ag} \rightarrow \text{Cu} + 2\text{Ag}^+ \] is \( 0.46 \, \text{V} \).
- MHT CET - 2025
- Electrochemistry
- A cylindrical pipe has a radius of \( 0.1 \, \text{m} \). If the speed of water flowing through the pipe is \( 2 \, \text{m/s} \), calculate the volume flow rate of water through the pipe.
- MHT CET - 2025
- mechanical properties of fluid
- A particle is moving with a constant velocity of 5 m/s in a circular path of radius 2 m. What is the centripetal acceleration of the particle?
- MHT CET - 2025
- centripetal acceleration
- A ball is thrown vertically upwards with an initial velocity of 20 m/s. Calculate the time it takes for the ball to reach the highest point. (Assume \( g = 9.8 \, \text{m/s}^2 \))
- MHT CET - 2025
- laws of motion
View More Questions