Which scientist is recognized for pioneering the concept of centres of diversity based on global plant collection?

A geographical area characterized by the greatest variability of a particular crop species is known as a:

According to Vavilov's classification, which of the following is considered a main centre of diversity?

What distinguishes a primary centre of diversity from a secondary centre?

Why is genetic diversity considered crucial for crop improvement?

The 'Law of Homologous Series of Variation' suggests that:

Which factor contributes to the depletion of genetic diversity in crops?

A small area within a larger centre of diversity, noted for exceptionally high genetic variation and rapid evolution, is termed a:

If a region is identified as having a high concentration of cultivated crop varieties with desirable traits and numerous recessive genes, it is most likely a:

What is a key difference between a 'centre of origin' and a 'centre of diversity'?

Based on Vavilov's work, which crop's genetic diversity is significantly found in the South American centre?

Vavilov's initial studies on centres of diversity had limitations in coverage. Which two continents were notably under-represented or not covered?

The presence of many dominant genes and wild characteristics typically points towards which type of diversity centre?

Observing a specific trait, like drought tolerance, in one species of grass might lead researchers to look for similar tolerance in related grass species. This approach is based on:

Which centre of diversity is associated with crops like Durum wheat, Barley, Chickpea, Lentil, and Coffee?

What type of selection pressure is most prominent in primary centres of diversity?

Conserving genetic diversity is essential primarily to:

Which area was the first to have a gene sanctuary established for wild citrus species?

What is the primary goal of establishing gene sanctuaries?

Which method is used for conserving recalcitrant seeds that cannot be dried and stored?

What is a major disadvantage of seed gene banks?

What storage method involves keeping samples at -196°C?

What is a major challenge of maintaining field gene banks?

Which type of gene bank stores germplasm as seeds?

Why is germplasm conservation in meristem form preferred for asexually propagated species?

Which crops are typically stored in field gene banks due to seed storage difficulties?

What is one benefit of using seed gene banks for germplasm conservation?

Which country set up a gene sanctuary for coffee in 1984?

What is a major limitation of gene sanctuaries?

What differentiates a national gene bank from a global one?

Why is periodic evaluation necessary in seed gene banks?

Which organization in India maintains germplasm for multiple field crops?

What is a key disadvantage of meristem gene banks?

Which international organization maintains the global collection of rice germplasm?

What is the term for germplasm stored at -18 to -20°C for more than 150 years?

Which type of gene bank is most suitable for crops with orthodox seeds?

What advantage do field gene banks offer breeders?