Q
QuestionBiology

What is the correct order of protein synthesis?
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Step 1:
I'll solve this problem by outlining the correct order of protein synthesis in eukaryotic cells:

Step 2:
: Transcription (DNA to mRNA)

- The process begins in the cell nucleus - DNA is used as a template to create messenger RNA (mRNA) - RNA polymerase enzyme transcribes the DNA sequence into a complementary mRNA strand - This process involves:

Step 3:

DNA strand unwinds

Step 4:

RNA polymerase reads the template strand

Step 5:

Complementary RNA nucleotides are assembled

Step 6:
mRNA is formed with the genetic code

Step 7:
: mRNA Processing (in eukaryotes)

- The initial mRNA (pre-mRNA) is modified - Key modifications include:

Step 8:

Adding a 5' cap

Step 9:

Adding a 3' poly-A tail

Step 10:

Removing introns through RNA splicing

Step 11:

Creating mature mRNA

Step 12:
: Translation (mRNA to Protein)

- Occurs in the ribosome (either free in cytoplasm or on rough endoplasmic reticulum) - Steps of translation:

Step 13:
mRNA moves to ribosome

Step 14:
tRNA brings amino acids

Step 15:

Ribosome reads mRNA codons

Step 16:

Amino acids are linked into a polypeptide chain

Step 17:
: Protein Folding

- Newly formed polypeptide chain folds into its specific 3D structure - Assisted by chaperone proteins - Determines the protein's final functional shape

Final Answer

1. Transcription (DNA → mRNA) 2. mRNA Processing 3. Translation (mRNA → Protein) 4. Protein Folding