Final answer:
Gene expression is the process by which the information stored in a gene is used to create a functional product, such as a protein. It involves DNA replication, RNA transcription, protein synthesis, and cellular division.
Step-by-step explanation:
Gene expression is the process by which the information stored in a gene is used to create a functional product, such as a protein. It involves several steps:
- DNA replication is the process of making an exact copy of the DNA molecule, ensuring that each new cell receives a complete set of genetic information.
- RNA transcription is the process of creating an RNA molecule that is complementary to a specific gene on the DNA. This RNA molecule, called messenger RNA (mRNA), carries the information to the ribosome for protein synthesis.
- Protein synthesis is the process of translating the mRNA code into a specific sequence of amino acids that make up a protein. This process occurs at the ribosome and involves the participation of transfer RNA (tRNA) molecules.
- Cellular division is the process by which cells reproduce, allowing for growth, repair, and the formation of new organisms.