The process by which the chromosome number is halved during gamete formation is meiosis. In meiosis, a cell containing the diploid number of chromosomes is converted into four cells, each having the haploid number of chromosomes. … The chromosomes of the two cells then separate and pass into four daughterRead More →
A zygote undergoes rapid cell divisions (cleavage) to form a spherical ball of cells: the blastula; this will further develop into a blastocyst. Does meiosis form a zygote? Meiosis is where a diploid cell gives rise to haploid cells, and fertilization is where two haploid cells (gametes) fuse to formRead More →
The end product of meiosis I is two daughter cells that are genetically unique, but still diploid. Prior to meiosis the parent cell goes through DNA… What is separated at the end of meiosis 1? Explanation: During prophase I, homologous chromosomes form tetrads along the center of the cell. FullRead More →
Pachytene, also referred to as pachynema, is one of the five sub stages of Prophase I in meiosis. … Pachytene is defined as the stage when a fully formed synaptonemal complex exists. During pachytene the homologous chromosomes thicken and become recombinant. What are the changes occur in pachytene stage ofRead More →
Walther Flemming: pioneer of mitosis research. When was meiosis and mitosis discovered? 1879: Mitosis observed. Walter Flemming described chromosome behavior during animal cell division. Who coined the term meiosis and mitosis? The terms Mitosis and Meiosis are coined by Fleming and Farmer and Moore, respectively. Mitosis was first observed inRead More →
Meiosis occurs in the primordial germ cells, cells specified for sexual reproduction and separate from the body’s normal somatic cells. In preparation for meiosis, a germ cell goes through interphase, during which the entire cell (including the genetic material contained in the nucleus) undergoes replication. What is formed as aRead More →
Gap 2 Phase The last part of interphase is called the G2 phase. The cell has grown, DNA has been replicated, and now the cell is almost ready to divide. This last stage is all about prepping the cell for mitosis or meiosis. During G2, the cell has to growRead More →
At the end of meiosis-I, two daughter cells are formed having half the number of chromosomes present in diploid cell undergoing meiosis. Each daughter cell undergoes meiosis-II, producing two cells. What is the end result of mitosis what is the end result of meiosis? Mitosis results in two identical daughterRead More →
Mitotic recombination is a type of genetic recombination that may occur in somatic cells during their preparation for mitosis in both sexual and asexual organisms. … Mitotic homologous recombination occurs mainly between sister chromatids subsequent to replication (but prior to cell division). Does recombination occur in meiosis I or II?Read More →
Interkinesis lacks an S phase, so chromosomes are not duplicated. The two cells produced in meiosis I go through the events of meiosis II in synchrony. During meiosis II, the sister chromatids within the two daughter cells separate, forming four new haploid gametes. Does haploid happen in mitosis or meiosis?Read More →