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Which one of the following mRNA sequence...

Which one of the following mRNA sequences can be translated completely ?

A

AUG UUC UCC UGG UAA UAU

B

AUG UUC UCC UGA UGG UAU

C

AUG ACG UAU UUC UGA CUC

D

AUG UAU UUC UGC CUC UAG

Text Solution

AI Generated Solution

The correct Answer is:
To determine which mRNA sequence can be translated completely, we need to analyze the given sequences based on the rules of translation. ### Step-by-Step Solution: 1. **Understand the Translation Process**: - Translation is the process of converting mRNA into a protein. It begins with a start codon (AUG) and ends with a stop codon (UAA, UAG, UGA). 2. **Identify the Start Codon**: - The start codon is AUG, which codes for the amino acid methionine. This codon must be present at the beginning of the sequence for translation to initiate. 3. **Identify the Stop Codons**: - The stop codons are UAA, UAG, and UGA. These codons signal the end of translation and do not code for any amino acids. 4. **Evaluate Each mRNA Sequence**: - **Sequence 1**: AUG UUC UCC UGG UAA - Starts with AUG (methionine) but ends with UAA (stop codon). Translation stops here, so it does not translate completely. - **Sequence 2**: AUG UUC UCC UGA UGG UAU - Starts with AUG (methionine) and continues translating until UAU, which is a stop codon. This sequence translates completely. - **Sequence 3**: AUG ACG UAU UUC UGA CUC - Starts with AUG but does not have a stop codon at the end. This sequence does not translate completely. - **Sequence 4**: AUG UAU - Starts with AUG but immediately encounters UAU, which is a stop codon. This sequence does not translate completely. 5. **Conclusion**: - The only sequence that translates completely is **Sequence 2**: AUG UUC UCC UGA UGG UAU. ### Final Answer: - The mRNA sequence that can be translated completely is **Sequence 2**.
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  • Which of the following sequence of reactions can give

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    `PhMgBrunderset(H^(oplus)//H_(2)O)overset(CO_(2))to underset(AlBr_(3))overset(Br_(2))`

  • Refer to the given mRNA segment It can be translated completely into a polypeptide. Which of the following codons may correspond with A and B ?

    A
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    D
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  • Which one of the following sequences was propsoed by Drawin and Wallace for organic evolution?

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    B
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