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In angiosperms the male gametophyte is?
The male gametophyte in an angiosperm is the stamen. The female gametophyte in an angiosperm is the pistil.This is completely wrong. The male gametophyte consists of the generative cell and the tube cell in the pollen grain. The female gametophyte is the 7-celled 8 nucleate embryo sac.
What structure does the male gametophyte become?
In flowering plants, megaspores become the female gametophytes.
What is the function of the spore of gymnosperms?
The function of the spore in gymnosperms is to serve as a reproductive structure that can develop into a gametophyte. The spore undergoes mitotic division to produce a multicellular gametophyte, which then produces the gametes (sperm or eggs). The fusion of these gametes gives rise to the development of the next generation of gymnosperms.
What structure directly precedes the development of both a male and female gametophyte?
diploid
What is formed from gametophytes?
A spore. The gametophyte makes gametes, which fertilize to form a zygote. That zygote develops into a sporophyte, which makes spores through meiosis. Those spores will then develop into the gametophyte.
What do micro spores develop into?
Each microspore can develop into a male gametophyte,or pollen grain
Compare the male and female spores of a conifer?
The female spores of a conifer are called megaspores or macrospores. Megaspores develop into a female gametophyte, producing egg cells. Male spores of a conifer are called microspores and are formed from meiosis. Microspores develop into the male gametophyte, which produces sperm cells.
What is one entire male gametophyte of a gymnosperm?
The male gametophyte of a gymnosperm is a pollen grain
In angiosperms the male gametophyte is?
The male gametophyte in an angiosperm is the stamen. The female gametophyte in an angiosperm is the pistil.This is completely wrong. The male gametophyte consists of the generative cell and the tube cell in the pollen grain. The female gametophyte is the 7-celled 8 nucleate embryo sac.
What structure does the male gametophyte become?
In flowering plants, megaspores become the female gametophytes.
The spores that plants produce develop into what?
gametophyte stage
Is stamen the mature male gametophyte?
No. The stamen is the male structure of the flower, consisting of a filament and anther. However, the mature, male gametophyte consists of a germinated pollen grain with its tube and two associated sperm.
What do gametophytes produce?
Gametophytes go through mitosis to create gametes (pollen in male gametophyte and egg in female gametophyte)
What is the function of the spore of gymnosperms?
The function of the spore in gymnosperms is to serve as a reproductive structure that can develop into a gametophyte. The spore undergoes mitotic division to produce a multicellular gametophyte, which then produces the gametes (sperm or eggs). The fusion of these gametes gives rise to the development of the next generation of gymnosperms.
Which part of the life cycle does a pollen grain represent?
a male gametophyte
Why do gametophytes die after the sporophyte starts to grow?
The gametophyte is responsible for producing gametes, both male and female. When a male gamete fertilizes the female gamete, a zygote, or fertilized cell is created. This zygote matures and grows (through mitosis) into a sporophyte. At this point, the gametophyte has already done its job, and is not needed. Therefore it dies. The sporophyte releases spores, which eventually develop into gametophytes, and the cycle restarts.
Why dont the sperm nuclei of the male gametophyte of flowering plants have flagella?
During pollination, the sperm of the male gametophyte are not flagellated because they generally do not move. They rely on the growth of a pollen tube to deliver them to the egg cell.
