Consider the following statements with respect to the flowering plants and choose the correct option.
(a) Pollen grains represent the male gametes
(b) Functional megaspore develops into embryo sac that represents the female gamete
(c) Transfer of pollen grains from anther to stigma of different plants is known as xenogamy
(d) Transfer of pollen grains from anther to stigma or another flower of the same plant is known as geitonogamy.
Consider the following statements with respect to the flowering plants and choose the correct option.
(a) Pollen grains represent the male gametes
(b) Functional megaspore develops into embryo sac that represents the female gamete
(c) Transfer of pollen grains from anther to stigma of different plants is known as xenogamy
(d) Transfer of pollen grains from anther to stigma or another flower of the same plant is known as geitonogamy.
The correct option is D c and d
D. c and d
Highly
reduced haploid males gametophyte generation on flowering plants is represented by
pollen grains. It consists of just two or three cells when released from the
anthers.
The
megaspore develops into the female gametophyte( the embryo sac) in a process
called megagametogenesis. It develops after megasporogenesis.
Xenogamy
is the only type of pollination which brings genetically different types of
pollen grains to the stigma during the pollination.
Geitonogamy
is the transfer of pollen grains from the anther to the stigma of another
flower of the same plants.
D. c and d
Highly reduced haploid males gametophyte generation on flowering plants is represented by pollen grains. It consists of just two or three cells when released from the anthers.
The megaspore develops into the female gametophyte( the embryo sac) in a process called megagametogenesis. It develops after megasporogenesis.
Xenogamy is the only type of pollination which brings genetically different types of pollen grains to the stigma during the pollination.
Geitonogamy is the transfer of pollen grains from the anther to the stigma of another flower of the same plants.
