Question

What is cry genes in which organism are they present?

Answer 1

Cry genes codes a toxin which is poisonous to some insects thus giving resistant to the plants. They are present in bacterium Bacillus thuringiensis.

Answer 2

Upon sporulation, B. thuringiensis forms crystals of proteinaceous insecticidal δ-endotoxins (called crystal proteins or Cry proteins), which are encoded by cry genes. In most strains of B. thuringiensis, the cry genes are located on a plasmid (cry is not a chromosomal gene in most strains).