Bt cotton is a genetically modified crop formed by inserting the Bacillus Thuringiensis genome into cotton. This allows Bt cotton to produce Bt toxins that specifically kill insects when ingested. The toxins are dissolved and activated in the insect's digestive system, forming ion channels that disrupt electrolyte balance and kill the insect. Bt cotton provides advantages of higher yields and resistance to pests due to the toxins, though it also has disadvantages of high seed costs and potential issues like unemployment and malpractices.

1. Bt Cotton
GMO Crop
Formed by altering the genome of Cotton through Genetic Engineering.
Bt Cotton Genotype
Bacillus Thuringiensis Genome
+ Cotton Genome
Bt Cotton Phenotype
More than 200 types of Bt toxins
are produced.
Each toxic kill specific insect
Mode of Action
When ingested by
insects cry toxins are
dissolved and activated
by high ph env. Of
animals gastrointestinal
system.
Cry molecules form ion
channels due to thid
subsequent flow ok k+
ions disturbed and
insect die due to internal
infection.
Advantages
High yield
Higher res istance to
pests
Biodegradeble
Disadvantages
High cost of bt cotton
seed
Unemloyement
Permotes malpractices