In 1956, DNA polymerase was discovered from the cell of:

by

(A) E. coli
(B) Streptococcus
(C) Pseudomonadota
(D) None of these

🧠 Explanation:

  • DNA polymerase is an essential enzyme that helps in the replication of DNA by synthesizing a new DNA strand from a template.
  • It was first discovered in 1956 by Arthur Kornberg during his work with bacterial cells.
  • The source of this discovery was the bacterium *Escherichia coli* (E. coli), which played a crucial role in early molecular biology research.
  • This breakthrough significantly advanced the understanding of DNA replication and genetic inheritance.