Pest-resistant cotton commonly known as ‘Bt-Cotton’ is genetically engineered by inserting a gene from a:

Q. Pest-resistant cotton commonly known as ‘Bt-Cotton’ is genetically engineered by inserting a gene from a:
Answer: Bacterium
Notes: Bt cotton is an insect-resistant transgenic crop designed to combat the bullworm. Bt is a soil bacterium containing Cry genes that encode crystal proteins which are fatal to some Lepidopteran caterpillars when ingested.