False
At the end of mitosis two daughter cells are produced identical to the parent cell. If the parent cell is haploid the daughter cell will be haploid. If the parent cell is diploid the daughter cell is also diploid.
The phase that results in a change of ploidy from diploid 2n to haploid n is meiosis. Meiosis is a type of cell division that occurs in sexually reproducing organisms, resulting in four daughter cells with half the number of chromosomes as the parent cell.
Endosperm of gymnosperm is haploid(ploidy n), develop from megaspore (n) before fertilization. ploidy of endosperm in angiosperm is 3n(central cell fused with one male gamete i.e 2n+n).
The term ploidy indicates the number of complete sets of chromosomes in a cell. This can be haploid (one set of chromosomes), diploid (two sets), triploid (three sets), and so on. For example, humans are typically diploid, with two sets of 23 chromosomes each.
Metaphase of meiosis 2 has the haploid number of chromosomes at the equator of the spindle. In meiosis 1, during metaphase, there are still pairs of homologous chromosomes lined up at the equator.
Its ploidy is 1n.
Haploid (n)
Ploidy
During the metaphase stage of cell division, the chromosomes align single file along the equator of the cell. In a haploid cell, there is only one set of chromosomes, so all of the chromosomes will align along the equator before separating and moving to opposite poles of the cell during anaphase.
At the end of mitosis two daughter cells are produced identical to the parent cell. If the parent cell is haploid the daughter cell will be haploid. If the parent cell is diploid the daughter cell is also diploid.
The phase that results in a change of ploidy from diploid 2n to haploid n is meiosis. Meiosis is a type of cell division that occurs in sexually reproducing organisms, resulting in four daughter cells with half the number of chromosomes as the parent cell.
During meiosis I, the DNA content is halved as homologous chromosomes separate, leading to haploid daughter cells. In meiosis II, sister chromatids separate without DNA replication, resulting in four haploid daughter cells with the same DNA content as the parent cell before starting meiosis.
ploidy is the classification based on the number of homologous chromosomes present. if there is only one pair of homologous chromosomes then the nucleus is said to be haploid if there are two pairs then it is known as diploid if three it is triploid if many it is noted as polyploidy --------------------------- an oocyte or a spermatocyte are haploid cells in a species that normally have diploid cells.
Endosperm of gymnosperm is haploid(ploidy n), develop from megaspore (n) before fertilization. ploidy of endosperm in angiosperm is 3n(central cell fused with one male gamete i.e 2n+n).
In metaphase of mitosis, the chromosomes line up in a single row at the center of the cell, while in metaphase I of meiosis, the chromosomes line up in pairs at the center of the cell. This difference is due to the fact that mitosis involves the division of a somatic cell into two identical daughter cells, while meiosis I involves the division of a germ cell into two haploid daughter cells with genetic variation.
Human somatic cells are diploid, 2n. Human sex cells are haploid, n. Thus, the ploidy of human cells is 2, while n=23.
Each dividing diploid cell will have 6 chromatids at metaphase - 3 chromatids from the maternal set of chromosomes and 3 chromatids from the paternal set of chromosomes.