Which of the following bacteria is not a source of restriction endonuclease?

Options

A. Haemophilus influenzae
B. Escherichia coli
C. Agrobacterium tumefaciens
D. Bacillius amyloli

Answer

C

Explanation

Agrobacterium tumefaciens is a pathogen of several dicot plants. It delivers a piece of DNA known as T-DNA in the Ti plasmid which transforms normal plant cells into tumour cells to produce chemicals required by pathogens. The restriction enzyme Eco RI, is isolated from E. coli RY13. The first restriction enzymes Hind II was isolated from bacterium Haemophilus influenzas. The restriction enzyme Bam HI is isolated from Bacillus amyloli.