CBSE
In a cereal grain the single cotyledon of embryo is represented by
coleorhiza
scutellum
prophyll
prophyll
Flowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by
Water
Bee
Wind
Wind
A dioecious flowering plant prevents both:
Autogamy and xenogamy
Autogamy and geitonogamy
Geitonogamy and xenogamy
Geitonogamy and xenogamy
Double fertilization is
Fusion of two male gametes of a pollen tube with two different eggs
Fusion of one male gamete with two polar nuclei
Syngamy and triple fusion
Fusion of two male gametes with one egg
The arrangement of the nuclei in a normal embryo sac in the dicot plants is
2+4+2
3+2+3
2+3+3
2+3+3
Double fertilization is exhibited by
Gymnosperms
Algae
Fungi
Fungi
Attractants and rewards are required for
Anemophily
Entomophily
Hydrophily
Hydrophily
Functional megaspore in an angiosperm develops into
Ovule
Endosperm
Embryo sac
Embryo sac
An enzyme that can stimulate germination of barley seeds is
α-amylase
lipase
protease
protease
Coconut fruit is a
Drupe
Berry
Nut
Nut