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Which cell of the ovule gets transformed into megaspore mother cell?
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What are the sturctures that produce the male gametophyte in angiosperms called?
stamen, pollen pod
What happens to a megaspore mother cell and a microspore mother cells as an immediate result of meiosis?
The megaspore mother cell and the microspore mother cells split in half.
How many chromosomes are there in a megaspore mother cell of a tobacco with a diploid number of 48?
The answer is 48. A megaspore mother cell is 2n before is begins meiosis.
What is meant by monosporic development of female gametophyte?
The female gametophyte or the embryo sac develops from a single functional megaspore. This is known as monosporic development of the female gametophyte. In most flowering plants, a single megaspore mother cell present at the micropylar pole of the nucellus region of the ovule undergoes meiosis to produce four haploid megaspores. Later, out of these four megaspores, only one functional megaspore develops into the female gametophyte, while the remaining three degenerate
Are spermatids haploid?
Four megaspores are formed from meiotic division of megapore mother cell which is diploid. We know that diploid cells undergo meiosis to give haploid cells. So, it seems to me that megaspores are haploid.
What are immature female gamete called?
ostecyte
In plants do kalanchoe form between the two new neclei?
Each nucleus divides by mitosis to become two nuclei. One is the tube nucleus. The other is a generative nucleus. The wall of the cell thickens to protect the developing pollen grain. As the anther ripens, the wall between the paired pollen sacs disappears. The pollen sacs burst open and the mature pollen grains are ready for dispersal. Each ovary contains one or more ovules. The green structure at the top of the diagram is the ovule. The integuments are the 2 walls of the ovule. There is a small opening in the walls called a micropyle. This is where the pollen tube will enter. The nucellus is cells that provide nutrition for the growth of the ovule. The embryo sac, also known as the megaspore, divides by meiosis to form 4 haploid cells. Three of these cells degenerate and one remains. Only one megaspore survives in each ovule. This becomes the embryo sac. The haploid nucleus of the surviving megaspore undergoes three mitotic divisions. Eight haploid nuclei are now present. Within the swollen 'megaspore cell' six haploid cells and two 'polar nuclei' are formed. The entire structure is called the embryo sac.
How does the ovule in a flower work?
The ovule in a flower develops in to seed after fertilization of egg cell
Is the human ovule an organ?
Human ovule or ovum is femin sexual cell
How is a conifer zygote formed?
The pollen and megaspore which is the receiving haploid cell combine to form a diploid cell. That diploid cell grows into a zygote .
What uinites to an ovule?
A sperm cell (also called spermatozoa) unites with ovule usually in ampulla of fallopian tube
What do you call the fertilized egg of a plant?
A zygote is the fertilized egg cell of a plant. The zygote develops into the plant embryo, and the ovule develops into the seed coat. Together with the endosperm, these components comprise the seed.a seed
