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Were does pollen comes from?
The stamens which are the male parts produce pollen. It creates in the anther. For an even better answer if the pollen from a stamen travels to the stigma in the same flower it will be know a self pollination. For cross pollination the anther must produce pollen and travel to a different flower's stigma. It is basically self pollination with two flowers.
What is it when pollen is transferred to a stigma from the same plant?
There are two types of pollination. When pollen grains are transferred from the anther to a stigma of the same flower or a flower on the same plant, it leads to self pollination. If the transfer involves different flowers on different plants, that is cross pollination.
What does the anther contains?
similar things as bones
How do you xxplain the structure of the pollen grain describe the development of pollen grain and male gamete?
While still attached to the anther, the nucleus of the pollen grain divides, producing two nuclei, one of which becomes the tube nucleus, the other is called the generative nucleus. The generative nucleus divides again, forming two sperm cells. Once the pollen grain is released from the anther, it is transported (by wind or fauna) to the stigma of the female flower. Once a pollen grain has landed on the stigma, it begins to grow a pollen tube (there are three nuclei in the pollen tube, one from the tube nucleus, and the two sperm). When the pollen tube reaches the ovary, both sperm cells enter the ovule, one fuses with the egg nucleus, the other fuses with polar nuclei that is also inside the ovule, forming the endosperm.
What is the function of pollen?
Pollen is the plants mechanism of transferring haploid (n) male genetic material (male gametophytes) from the anther of one flower to the stigma of another (cross-pollination) or from the anther of one flower to the stigma of the same flower (self-pollination).The pollen grain is hard and encapsulates the genetic materials (of one parent) with in, in very much the same way that a seed contains the genetic material of both parents.Pollen is small (sometimes microscopic), light and can travel far by wind or attached to insects (bees, moths, butterflies).In angiosperms pollen is produced in the anther of the flowers, in gymnosperms it is produced in the male cones of the plant.When the pollen grain lands on the stigma of suitable flower (very closely related species or same species) the pollen grain germinates; a pollen tube grows down the style and into the ovary (controlled by the generative and tube nucleus - which were contained in the pollen grain) of the flower, here it releases two sperm nuclei which fuse with the haploid (n) nucleus of the ovule to form a zygote.Pollen is made in the male part of the flower (anther) and is full of genetic material. When the pollen and the ova (egg) are joined the DNA from the pollen enters the ova and joins with its DNA. This is fertilisation and the fertilised ova grows into a seed. (pollen has a similar job to do for plants that sperm does for animals).
Were does pollen comes from?
The stamens which are the male parts produce pollen. It creates in the anther. For an even better answer if the pollen from a stamen travels to the stigma in the same flower it will be know a self pollination. For cross pollination the anther must produce pollen and travel to a different flower's stigma. It is basically self pollination with two flowers.
Does the anther hold pollen?
the anthers have to reach the stigma to make seeds.
What contains two pollen sacs with pollen grains?
anther
What are the two parts of the anther?
pollen and filament
What is it when pollen is transferred to a stigma from the same plant?
There are two types of pollination. When pollen grains are transferred from the anther to a stigma of the same flower or a flower on the same plant, it leads to self pollination. If the transfer involves different flowers on different plants, that is cross pollination.
What does the anther contains?
similar things as bones
What is stamens'?
The 'stamen' is the male part of a flower and consists of a 'filament' and 'anther' where 'pollen' is produced.The 'pistil' is the female part, which consists of the 'stigma', 'style', and 'ovary' containing 'ovules'. After fertilization the ovules mature into seeds.The two parts of a stamen are the anther and filament.
What sex are the pollen and the anther?
they are two males! :)
How do you xxplain the structure of the pollen grain describe the development of pollen grain and male gamete?
While still attached to the anther, the nucleus of the pollen grain divides, producing two nuclei, one of which becomes the tube nucleus, the other is called the generative nucleus. The generative nucleus divides again, forming two sperm cells. Once the pollen grain is released from the anther, it is transported (by wind or fauna) to the stigma of the female flower. Once a pollen grain has landed on the stigma, it begins to grow a pollen tube (there are three nuclei in the pollen tube, one from the tube nucleus, and the two sperm). When the pollen tube reaches the ovary, both sperm cells enter the ovule, one fuses with the egg nucleus, the other fuses with polar nuclei that is also inside the ovule, forming the endosperm.
Functions of anther?
The male part of the flower has a thin stalk with an anther at its tip. The anther is made up of pollen sacs which contain pollen grains. The male reproductive cells in the pollen grains fertilize the egg and the fertilized egg develops into a young plant.
What are the two types of pollinator?
The two main types of pollination are self (or autogamous) pollination and cross (or heterogamous) pollination. Self pollination - is when pollination is tansfer from the anther to the stigma of the same flower. Cross pollintion - is when pollination is transfer from the anther to the stigma of another flower
What part of the flower that make pollen?
The part of the flower that produces pollen is called the stamen. The stamen is made of two parts, the filament and the anther. The filament is the little stem that holds up the anther, which is the part that actually makes the pollen.
