Plant Genetic Resources Questions and Answers

Answer: C

The key gives North Western Himalaya for a germplasm survey of Zizyphus vulgaris. I could not confirm the region from a source. The species is a temperate jujube found at higher altitudes, which fits a survey in the north-western Himalaya.

Central and eastern India, the peninsula and the Deccan plateau are warm regions better suited to the Indian ber, Z. mauritiana.

Answer: C

The law of homologous series was given by N. I. Vavilov.

The Russian botanist Nikolai Ivanovich Vavilov stated the law of homologous series in variation in 1920. It says that related species and genera show similar series of heritable variation, so a variant found in one species (for example, a grain colour or awnless form in wheat) can be expected in related species such as barley or rye. He is also known for the centres of origin of cultivated plants.

Darwin gave the theory of natural selection, Mendel the laws of inheritance, and M. S. Swaminathan led the Green Revolution in India; none of them proposed this law.