Definition
Alexander Robertus Todd, Baron Todd (1907-1997), was a Scottish biochemist. He won the Nobel Prize in Chemistry in 1957 for his work on nucleotides and co-enzymes. Nucleotides are the building blocks of DNA and RNA. Co-enzymes are essential for enzyme function. His research was crucial for understanding genetics and metabolism. Imagine him as the architect of the genetic code, laying the foundation. His discoveries paved the way for modern molecular biology.