QQuestionBiology
QuestionBiology
What is the correct sequence of molecules involved in protein synthesis from beginning to end?
A. mRNA → tRNA → DNA → Protein
B. DNA → mRNA → tRNA → Protein
C. DNA → mRNA → Protein → tRNA
D. tRNA → Protein → mRNA → DNA
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Answer
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Step 1:I'll solve this step-by-step, focusing on the molecular process of protein synthesis:
Step 2:: Understanding Protein Synthesis
Protein synthesis involves a complex process called gene expression, which occurs in two main stages: - Transcription (DNA to mRNA) - Translation (mRNA to Protein)
Step 3:: Transcription Process
\text{DNA} \rightarrow \text{mRNA}
In transcription, genetic information is transferred from: - The DNA's genetic code is copied into messenger RNA (mRNA) - This occurs in the cell nucleus - RNA polymerase enzyme facilitates this process
Step 4:: Translation Process
\text{mRNA} \rightarrow \text{tRNA} \rightarrow \text{Protein}
In translation, the mRNA's genetic code is used to create a protein: - Transfer RNA (tRNA) helps translate mRNA's genetic code - Ribosomes read the mRNA and assemble amino acids - tRNA brings specific amino acids to build the protein chain
Step 5:: Correct Sequence Analysis
\text{DNA} \rightarrow \text{mRNA} \rightarrow \text{tRNA} \rightarrow \text{Protein}
Examining the sequence of molecular events, the correct order is:
Final Answer
DNA → mRNA → tRNA → Protein is the correct sequence of molecules involved in protein synthesis.
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