Main Difference – Prophase 1 vs 2. Prophase 1 and 2 are two phases in the meiotic division of cells which produce gametes in order to carry out their sexual reproduction. Two stages of meiosis can be identified, meiosis 1 and meiosis 2. Meiosis 1 is followed by meiosis 2. Prophase 1 is the initial phase of meiosis 1 and prophase 2 is the initial phase of meiosis 2.
Prophase 1 vs Prophase 2 of meiosis. DURING PROPHASE I: Crossing over happens in chromosomes where genetic information is swapped from chromosome to another at a chiasma (chiasmata for multiple ...
Prophase 1 of Meiosis is the first stage of meiosis and is defined by five different phases; Leptotene, Zygotene, Pachytene, Diplotene and Diakinesis (in that order). Prophase 1 is essentially the crossing over and recombination of genetic material between non sister chromatids - this results in the genetically unidentical, haploid daughter chromatid cells.
Prophase 1 is the most complicated and longest phase of meiosis. It includes five sub stages viz. Leptotene, zygotene, pachytene, diplotene and diakenisis. 1) Leptotene: In this phase chromatin network condenses and resolves into long and thin thr...
Prophase 1 vs Prophase 2 of meiosis DURING PROPHASE I: Crossing over happens in chromosomes where genetic information is swapped from chromosome to another at a chiasma (chiasmata for multiple ...
* Prophase I is the beginning phase of Meiosis I while Prophase II is the beginning phase of Meiosis II. * There is a long interphase before Prophase I, whereas Prophase II occurs without an interphase. It directly goes from Telophase I to propha...
Difference between Prophase 1 and 2. August 2, 2017, Simy Em, Leave a comment. For sexual reproduction to be realized, massive cell division through meiosis and mitosis must occur.
The key difference between prophase I and prophase II is that the prophase I is the beginning phase of meiosis I, and there is a long interphase before it while the prophase II is the first phase of meiosis II without an interphase prior to it.. Mitosis and meiosis are two important cell divisions occur in all living organisms. Among them, meiosis is a vital process for sexual reproduction.
Due to the duration of this process, prophase I consumes 90 percent of the time of a two-part meiosis process; hence, prophase I is considerably longer than prophase II. During prophase II, which occurs during the second phase of meiosis known as meiosis II, the nuclear envelope breaks down, and the spindle apparatus forms.
The four main steps of meiosis II are: prophase II, metaphase II, anaphase II, and telophase II. In prophase II we see the disappearance of the nucleoli and the nuclear envelope again as well as the shortening and thickening of the chromatids. Centrosomes move to the polar regions and arrange spindle fibers for the second meiotic division.