In which of the following plants, triple fusion and double fertilization was discovered ?

Which of the following is observed in Casuarina ?

Which of the following plants have stony endosperm ?

Select the odd one w.r.t. ex-albuminous seed.

Fusion of male gamete and definitive nucleus results in the formation of

Which of the given statements are related to outbreeding devices. (a) Discourage self pollination (b) Prevent loss in genetic variation (c) Different placement of anther and stigma

Which of the following are protandrous and protogynous flowers, respectively?

Select the correct option w.r.t. plant with cellular mode of endosperm development.

Who observed pollen tube in Portulaca for the first time ?

Emasculation is not required during artificial hybridisation when female parent produces