The sporophyte stage! just found the answer to my homework
This is known as fertilization. An example is when sperm and ovum/egg come together.
sporophyte stage
Fertilisation
Mitotic Cell Division occurs in both haploid and diploid cells
Haploid
Meosis is the process that brings about the generation of gametes. In meosis, there are two reductional divisions that result in the daughter cells having haploid number of chromosomes.
Meiosis is a type of cell division that produces gametes. During this process, the diploid number of chromosomes in the DNA is halved, becoming a haploid number.
Every cell in the body, other than the sperm and egg cells, is diploid. This means that they all have the whole complement of two sets of 23 chromosomes, totalling 46. The gametes, sex cells, only have one set of 23 chromosomes. This is called haploid. This is so that when one haploid gamete from a female and another haploid gamete from a male fuse, a diploid cell will form and be able to mitotically replicate to produce an individual.
Mitotic Cell Division occurs in both haploid and diploid cells
They are haploid. As meosis produces sex cells (sperm and eggs) they must have half the genetic material, so when fertilisation occurs the gamete formed has one full set of chromosomes, it is diploid.
Haploid
yea mitosis do begins with a haploid as well as doploid cell also..nd if the parent cell is haploid so the two daughter cells that are identical to each other will be haploid and if the parent cell is diploid so the daughter cells will be diploid.
Meiosis is required for sex cells to go from two sets of chromosomes (diploid) to having only one set (haploid).
Meosis is the process that brings about the generation of gametes. In meosis, there are two reductional divisions that result in the daughter cells having haploid number of chromosomes.
Meiosis is a type of cell division that produces gametes. During this process, the diploid number of chromosomes in the DNA is halved, becoming a haploid number.
Every cell in the body, other than the sperm and egg cells, is diploid. This means that they all have the whole complement of two sets of 23 chromosomes, totalling 46. The gametes, sex cells, only have one set of 23 chromosomes. This is called haploid. This is so that when one haploid gamete from a female and another haploid gamete from a male fuse, a diploid cell will form and be able to mitotically replicate to produce an individual.
Mitosis produces DIPLOID cells- remember in mitosis your INCREASING the number of CELLS but the chromosome number is the SAME as the parentso a parent that has a (DIPLOID number of 10)will produce at the end of mitosis will produce 2 children with a diploid number of (10)That is why Mitosis is CONSERVATIVE.So in actuality, 1 diploid cell will produce 2 diploid cells in mitosisThe above is only true if the starting cell is itself diploid. However there are plenty of instances, especially in plants, in which cells that are haploid (the ones that give rise to pollen and egg, and endosperm nuclei, for example) or multiploid (hexaploid wheat, for example) undergo mitosis, and the cells that are produced have the same ploidy as the starting cell. Always. As noted above, mitosis is conservative. However, you ought not assume that you started with a diploid cell.
Spermatogenesis is the process in which male haploid germ cells are produced from diploid spematogonial stem cells by way of mitosis and meiosis . This occurs in the same way in rats in the seminiferous tubules boundaries of the testes.
A gamete is haploid (1N) so 'Aa' & 'AA' are diploid and during cell division (mitosis) gametes are formed and then 2 gametes merge together to make a diploid (think of sperm and egg, each is haploid or 1N, when fertilization occurs the egg and sperm form 1 cell that is 2N or diploid). So the possible gametes for 'Aa' would be 'A' & 'a' while for 'AA' the only gametes possible are 'A' If the question is asking what the possible gametes are for 'AaBB' the haploid (gamete) can be 'AB' or 'aB'
Meiosis produces haploid cells from a diploid cell