Protein Synthesis

Front

What is protein synthesis?

Back

Protein synthesis is the process by which cells generate new proteins, involving transcription of DNA to mRNA and translation of mRNA to amino acids.

Front

What role does mRNA play in protein synthesis?

Back

mRNA (messenger RNA) carries the genetic information from DNA to the ribosome, where proteins are synthesized.

Front

What is the function of tRNA in protein synthesis?

Back

tRNA (transfer RNA) transports specific amino acids to the ribosome during protein synthesis, matching them to the corresponding codons on the mRNA.

Front

Where does transcription occur in a cell?

Back

Transcription occurs in the nucleus, where DNA is transcribed into mRNA.

Front

What is the role of ribosomes in protein synthesis?

Back

Ribosomes are the cellular structures where translation occurs, assembling amino acids into proteins based on the sequence of mRNA.

Front

What is the central dogma of molecular biology?

Back

The central dogma describes the flow of genetic information: DNA -> RNA -> Protein.

Front

What is a codon?

Back

A codon is a sequence of three nucleotides on mRNA that corresponds to a specific amino acid or stop signal during protein synthesis.

Front

What is the significance of the start codon?

Back

The start codon (AUG) signals the beginning of translation and codes for the amino acid methionine.

Front

What is a stop codon?

Back

A stop codon is a nucleotide triplet that signals the termination of protein synthesis, indicating that the polypeptide chain is complete.

Front

How does the sequence of nucleotides in DNA affect protein synthesis?

Back

The sequence of nucleotides in DNA determines the sequence of mRNA, which in turn dictates the order of amino acids in a protein.