Overview
Gene expression is a fundamental biological process that allows cells to produce proteins based on the genetic information encoded in DNA. It involves two main stages: transcription, where DNA is converted into messenger RNA (mRNA), and translation, where mRNA is used to assemble amino acids into pr...
Key Terms
Example: The gene for hemoglobin determines how red blood cells carry oxygen.
Example: DNA is structured as a double helix.
Example: mRNA carries the genetic code from DNA to the ribosome.
Example: During transcription, the gene for insulin is copied into mRNA.
Example: Translation occurs at the ribosome, where amino acids are linked together.
Example: Ribosomes can be found free in the cytoplasm or attached to the endoplasmic reticulum.