Which widely grown variety of rice,developed by the International Rice Research Institute $(IRRI)$ in Manila,Philippines,helped solve the food crisis in Asia?

Pusa Shubhra and Pusa Snowball $K-1$ are varieties of which crop?

The name of Norman Borlaug is associated with which of the following?

Which characteristics are present in cotton varieties that do not attract bollworms?
$(i)$ Smooth leaves
$(ii)$ Hairy leaves
$(iii)$ Stem thorns
$(iv)$ Nectar-containing
$(v)$ Low aspartic acid
$(vi)$ Nectar-less

Consider the following four measures $(1-4)$ that could be taken to successfully grow chickpea in an area where bacterial blight disease is common.
$(1)$ Spray with Bordeaux mixture
$(2)$ Control of the insect vector of the disease pathogen
$(3)$ Use of only disease-free seeds
$(4)$ Use of varieties resistant to the disease
Which two of the above measures can control the disease?

The collection of seeds of all the alleles of all the genes of a given crop is called.....