Nucellar polyembryony is reported in species of
Gossypium
Triticum
Brassica
Brassica
D.
Brassica
The occurrence of more than one embryo in a seed is referred as polyembryony. In many Citrus and mango varieties, some of the nucellar cells surrounding the embryo sac and develop into the embryos in such species each ovule contain many embryos (nucellar polyembryony).
The gametophyte is not an independent, free-living generation in
Adiantum
Marchantia
Pinus
Pinus
Synapsis occurs between
a male and female gamete
mRNA and ribosomes
spindle fibres and centromere
spindle fibres and centromere
Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called
xenogamy
geitonogamy
karyogamy
karyogamy
In which one of the following pollination is autogamous?
Xenogamy
Chasmogamy
Cleistogamy
Cleistogamy
Apomictic embryos in Citrus arise from
Synergids
maternal sporophytic tissue in ovule
antipodal
antipodal
Wind pollinated flowers are
small, brightly coloured, producing large number of pollen grains
small, producing large number of dry pollen grains
large, producing abundant nectar and pollen
large, producing abundant nectar and pollen
Cotyledons and testa are edible parts of
groundnut and pomegranate
walnut and tamarind
french bean and coconut
french bean and coconut
