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The tRNA for which amino acid is the first to enter the ribosome?
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15. Central Dogma & Gene Regulation
Steps of Translation
2:32분문제 6
교과서 질문
Codons are ___________ nucleotides long and are in ___________, which is transcribed from DNA. During ___________, tRNAs serve as adapter molecules to bring ___________ to the ribosome to build a protein. Once the ribosome reaches a(n) ___________ on the mRNA, translation ends.
검증된 단계별 안내1
Identify the length of codons: Codons are sequences of nucleotides that specify amino acids. Each codon consists of 3 nucleotides, so the first blank is filled with '3'.
Determine the reading frame of codons: Codons are read in a continuous, non-overlapping sequence called the 'reading frame' during translation. So, the second blank is 'reading frame'.
Understand the process of translation: During translation, messenger RNA (mRNA) is decoded to build a protein. The third blank refers to this process, which is 'translation'.
Recognize the role of tRNA: Transfer RNAs (tRNAs) act as adapter molecules that bring specific amino acids to the ribosome based on the codon sequence. The fourth blank is 'amino acids'.
Identify the signal for translation termination: Translation ends when the ribosome encounters a 'stop codon' on the mRNA, which signals the end of protein synthesis. The fifth blank is 'stop codon'.
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2m주요 개념
질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.
Codon Length and Reading Frame
A codon is a sequence of three nucleotides in mRNA that corresponds to a specific amino acid or a stop signal during protein synthesis. Codons are read in a continuous, non-overlapping sequence called the reading frame, which ensures the correct translation of genetic information.
추천 영상:
08:44
Types of Mutations
Role of tRNA in Translation
Transfer RNA (tRNA) molecules act as adapters during translation by matching their anticodon sequences to mRNA codons and delivering the appropriate amino acids to the ribosome. This process enables the assembly of amino acids into a polypeptide chain based on the mRNA template.
추천 영상:
06:16Ribosomal tRNA Binding Sites
Translation Termination
Translation ends when the ribosome encounters a stop codon on the mRNA, which does not code for any amino acid. Release factors then promote the disassembly of the translation complex, freeing the newly synthesized protein for folding and function.
추천 영상:
02:16Termination of Translation
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