Protein synthesis and Gene Expression

Front

What is a codon?

Back

A codon is a three-nucleotide sequence in mRNA that codes for a specific amino acid.

Front

Why do cells differentiate?

Back

Cells differentiate to perform different functions because different genes are turned on or off inside that cell.

Front

What is the lac operon model?

Back

The lac operon model is a mechanism that regulates gene expression in bacteria, specifically how genes are expressed in the presence of lactose.

Front

What forms a protein?

Back

Proteins are formed when amino acids bond together through peptide bonds.

Front

What is the role of tRNA in protein synthesis?

Back

tRNA (transfer RNA) brings amino acids to the ribosome to assemble a protein.

Front

What is gene expression?

Back

Gene expression is the process by which information from a gene is used to synthesize a functional gene product, usually a protein.

Front

What are amino acids?

Back

Amino acids are organic compounds that serve as the building blocks of proteins.

Front

What is the function of mRNA?

Back

mRNA (messenger RNA) carries the genetic information from DNA to the ribosome for protein synthesis.

Front

What is a peptide bond?

Back

A peptide bond is a covalent bond that links amino acids together in a protein.

Front

What is transcription?

Back

Transcription is the process of copying a segment of DNA into RNA.