The zoological name of common silk worm isor Silk is obtained from

In an experiment freshly hatched larvae of an insect (Khapra beetle) were reared on a basal diet (complete diet without cholesterol) with increasing amounts of cholesterol. Results obtained are shown in the given graph.

The graph indicates

A scion is grafted to a stock. The quality of fruits produced will be determined by the genotype of

Genetic counsellors can identify heterozygous individuals by

Hisardale is a new breed of sheep developed in Punjab by one of the breeding technique in which superior male of one breed is mated with superior females of another breed. Identify the breeding technique from the option given below