First pollen falls from a male cone onto a female cone. In time a sperm cell and an egg cell join together in an ovule on the female cone
A pollen grain develops from a cell in the stamen.
the structure that develops into a pollen grain is the ***************, and also ******.
Microspores develop into pollen grains.
The answer is the stigma
Male gametes
Hairy legs of honey bees and moths
Anther
Pollen grain after meiosis in the microspore mother cell and has haploid set of chromosomes. A seed develops from ovule after fertilization, in which the number of chromosomes get doubled. Pollen grain is unicellular, microscopic structure, a seed is multicellular macroscopic structure.
microspore when develops a exine around it, is called a pollen grain.
The pollen grain reach the pistil either by self-pollination or by cross pollination by pollinators.
The germinated pollen grain is empty of the male gamete nucleus.
Pollen grains reach the pistil through pollination. The pollen grains are placed on the stigma of the carpal, and it transfers by wind, insects, built in mechanical discharge, and men. When the pollen lands on the stigma, it starts a series of chemical reactions that allow the pollen grain to produce a structure called the pollen tube. At the same time, the generative nucleus divides and produces two sperm nuclei. The pollen grain with the pollen tube and three nuclei is a mature gametophyte. The pollen tube works its way through the style of the carpal and touches the micropyte of the ovule. The sperm nuclei enter the embryo sac and fertilizes the egg and two polar nuclei, referred to as double fertilization. The fertilized egg develops into the immature seed plant, and the central cell develops into the endosperm, or food storage ares, of the seed.
Pollen grain after meiosis in the microspore mother cell and has haploid set of chromosomes. A seed develops from ovule after fertilization, in which the number of chromosomes get doubled. Pollen grain is unicellular, microscopic structure, a seed is multicellular macroscopic structure.
microspore when develops a exine around it, is called a pollen grain.
the pollen grain
Microspore
pollen tube
pollen grain
The pollen grain reach the pistil either by self-pollination or by cross pollination by pollinators.
i don't f*** know
yes Dicot have pollen grain and in Dicots pollen grain possess 3 germ pores
The pollen grain released from the anther lobe during anthesis reaches the stigma by pollination. Thereafter, it germinates on the compatible stigma to send pollen tube to the micropyle of the ovule inside the ovary. The male gametes from the pollen grain are transferred to the embryo sac for fertilization and the ovule is converted into a seed when zygote develops into an embryo.
The two nuclei found inside each pollen grain are called tube nucleus and germ nucleus.
The transfer of pollen grains to the female reproductive structure, the pistil, is called pollination. This transfer can be mediated by the wind.