Pollen-Pistil Interaction

Reproduction In Plants - Site For Reproduction|Male Reproductive Part|Female Reproductive Part|Reproduction Process|Gametogenesis|Gamete Transfer - Pollination|Pollen Pistil Interaction|Fertilisation|Post Fertilisation Changes|Seed Germination

Angiosperms|Microsporophyll - Stamen|Microsporogenesis |Male Gametophyte - Pollen Grain|Megasporophyll - Pistil / Carpel|Megasporangia|Female Gametophyte - Embryo Sac|Pollination And Pollen Pistil Interaction|Double Fertilisation|Life Cycle|Post Fertilisation Changes|Classification Of Angiosperms|Monocots And Dicots|Economic Importance

Choose the option that correctly identifies (A - D) blanks in the statements (I - IV) given below : I. An embryo develops at the ____A____ end of embryo sac. II. _____B_____ seed was discovered during the archaeological excavation at King Herod's palace. III. ______C______ is a form of asexual reproduction that mimics sexual reproduction. IV. Pollen-pistil interaction is a ______D_____ process.

Identify the correct statement about fertilization. I. Pollen grain germinates on the stigma. II. The filiform apparatus guides the pollen grain to the egg. III. The micropyle doesn't allow entry of male gametes . IV Pollen pistil interaction determines the promotion or inhibition of pollen.

Given figures show the pollen-stigma interaction, where pollen wall proteins are released onto the pellicle of stigmatic papillae, where recongnition reaction occurs. Which of the following statements drawn from given figures is incorrect ?

Pollne pistil interactin is

What is population interaction? Explain the interactions in Mutualism and Competition.