Vaccination provides which type of immunity? MCQ with Answer and Explanation

Explanation:
The Green Revolution (1960s-70s) involved adopting high-yielding varieties (HYVs) of wheat and rice, along with chemical fertilizers, pesticides, and irrigation, leading to dramatic increases in food grain production in India. Norman Borlaug was instrumental. GM crops came later. Organic farming is traditional and low-input.

Explanation:
CCK, released from the duodenum in response to fats, stimulates contraction of the gall bladder and release of bile, and also stimulates pancreatic enzyme secretion. Gastrin stimulates HCl, secretin bicarbonate, motilin GI motility.

Explanation:
Drosophila melanogaster (fruit fly) is a widely used model organism in genetics due to its short life cycle, large polytene chromosomes, easy culture, and high fecundity. Thomas Hunt Morgan established its use, discovering linkage and chromosomal theory. Musca domestica is housefly, Periplaneta cockroach, Bombyx silkworm. Many Nobel-winning genetic discoveries were made using Drosophila.