Consider statements about animal husbandry: 1. The Murrah breed is famous for high milk yield in buffaloes. 2. The Leghorn breed is famous for egg production in poultry. 3. Apiculture refers to fish farming. Which are correct? MCQ with Answer and Explanation

Explanation:
The pituitary gland is a pea-sized endocrine gland located at the base of the brain, in a bony cavity called sella turcica, attached to the hypothalamus by a stalk (infundibulum). It is divided into anterior and posterior pituitary, secreting hormones that regulate growth, reproduction, metabolism, and other endocrine glands. Thus, it's in the head, not neck or abdomen.

Explanation:
The Hardy-Weinberg principle states that allele and genotype frequencies in a population will remain constant (in equilibrium) from generation to generation in the absence of evolutionary influences. The conditions required for this equilibrium are: no mutation, random mating, no gene flow (migration), very large population size (no genetic drift), and no natural selection. Therefore, random mating is a condition that MAINTAINS the equilibrium, not a factor that disrupts it. Non-random mating would disrupt it.

Explanation:
Selman Waksman and colleagues isolated streptomycin from Streptomyces griseus in 1943, the first effective treatment for tuberculosis. Fleming discovered penicillin, Pasteur developed vaccines, Koch identified TB bacterium.