객관식
What is the function of the release factor during translation?
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3. Energy & Cell Processes
Steps of Translation
0:31분문제 2
교과서 질문
Where is the start codon located? a. at the start (5′ end) of the mRNA b. in the DNA just upstream of where transcription starts c. at the downstream end of the 5′ untranslated region (UTR) d. at the upstream end of the 3′ untranslated region (UTR)
검증된 단계별 안내1
Understand that the start codon is a specific sequence of nucleotides in mRNA that signals the start of translation.
Recall that the start codon is typically AUG, which codes for the amino acid methionine.
Consider the structure of mRNA, which includes regions such as the 5′ untranslated region (UTR) and the coding sequence.
Identify that the start codon is located at the beginning of the coding sequence, which follows the 5′ UTR.
Conclude that the start codon is at the downstream end of the 5′ untranslated region (UTR), which corresponds to option c.
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31s주요 개념
질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.
Start Codon
The start codon is a specific sequence of nucleotides in mRNA that signals the beginning of translation. It is typically the codon AUG, which codes for the amino acid methionine. This codon is crucial for ribosomes to recognize where to begin synthesizing a protein.
추천 영상:
05:03
1) Initiation of Translation
mRNA Structure
Messenger RNA (mRNA) is a single-stranded molecule that carries genetic information from DNA to the ribosome, where proteins are synthesized. The 5' end of mRNA is capped, and it contains a 5' untranslated region (UTR) before the start codon, which plays a role in the regulation of translation.
추천 영상:
가이드 코스
4:16Structure of the Eyeball Example 1
Transcription and Translation
Transcription is the process by which DNA is copied into mRNA, while translation is the subsequent process where ribosomes read the mRNA to synthesize proteins. The start codon is essential in translation, as it marks the point where the ribosome begins to assemble amino acids into a polypeptide chain.
추천 영상:
02:443) Termination of Transcription
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