Examples of high-yielding and disease-resistant wheat varieties are:

Select the correct match for $X$ and $Y$:

Column $X$	Column $Y$
$(1)$ Outcrossing	$(P)$ Agar-agar gel
$(2)$ Interspecific hybridization	$(Q)$ Mule
$(3)$ Callus culture	$(R)$ Rotary shaker
$(4)$ Suspension culture	$(S)$ Santa Gertrudis

Organic farming is the technique of raising crops through the use of:

Which crops were introduced to India from the New World?

The $IARI$,New Delhi has developed several vegetable crops. What are they enriched with?

Identify the incorrect statements from the following:
$(i)$ Increasing milk production capacity is an objective of animal breeding.
$(ii)$ Breeds of each domesticated animal show variations in their characteristics.
$(iii)$ Out-crossing involves breeding between a male and a female of two different species.
$(iv)$ $A$ mule is an example of interspecific hybridization.