Protein Synthesis

Front

What is the process of protein synthesis?

Back

Protein synthesis is the process by which cells generate new proteins, involving two main stages: transcription and translation.

Front

What is transcription in protein synthesis?

Back

Transcription is the process of copying a segment of DNA into messenger RNA (mRNA) in the nucleus.

Front

What is translation in protein synthesis?

Back

Translation is the process where ribosomes read the mRNA sequence to synthesize a protein by linking amino acids together.

Front

What is the role of mRNA in protein synthesis?

Back

mRNA serves as a template that carries the genetic information from DNA to the ribosome for protein synthesis.

Front

What is the start codon and its significance?

Back

The start codon is AUG, which signals the beginning of translation and codes for the amino acid methionine.

Front

What are stop codons and their role in translation?

Back

Stop codons (UAA, UAG, UGA) signal the end of translation, indicating that the protein synthesis is complete.

Front

Where does transcription occur in eukaryotic cells?

Back

Transcription occurs in the nucleus of eukaryotic cells.

Front

Why is it important for transcription to occur in the nucleus?

Back

It is important because DNA cannot leave the nucleus, so transcription must occur there to produce mRNA.

Front

What is the function of ribosomes in protein synthesis?

Back

Ribosomes are the cellular machinery that facilitate the translation of mRNA into a polypeptide chain (protein).

Front

What is the role of tRNA in translation?

Back

tRNA (transfer RNA) brings the appropriate amino acids to the ribosome during translation, matching them to the mRNA codons.