1. egg
2. synergid
3. zygote
4. suspensor
Apomictic embryos in Citrus arise from:
1. synergids
2. maternal sporophytic tissue in ovule
3. antipodal cells
4. diploid egg
1. Gossypium
2. Triticum
3. Brassia
4. Citrus
Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called:
1. xenogamy
2. geitonogamy
3. karyogamy
4. autogamy
Wind pollinated flowers are:
1. | small, brightly coloured, producing large number of pollen grains |
2. | small, producing large number of dry pollen grains |
3. | large, producing abundant nectar and pollen |
4. | small, producing nectar and dry pollen |
1. autogamy, but not geitonogamy
2. Both geitonogamy and xenogamy
3. geitonogamy, but not xenogamy
4. autogamy and geitonogamy
1. | it helps in the entry of pollen tube into the synergid |
2. | it prevents the entry of more than one pollen tube into the embryo sac |
3. | it brings about the opening of the pollen tube |
4. | it guides the pollen tube from the synergid to the egg |