Eventually cells need to duplicate. There are two main methods of replication, mitosis and meiosis. This tutorial will talk about mitosis.
The big idea to remember is that mitosis is the simple duplication of a cell and all of its parts. It duplicates its DNA and the two new cells (daughter cells) have the same pieces and genetic code. Two identical copies come from one original. Start with one; get two that are the same.
No, homologous chromosomes do not pair up during metaphase 2 as they do in metaphase 1. In metaphase 2, individual chromosomes line up along the metaphase plate.
No, during metaphase II of meiosis, homologous chromosomes do not pair up as they do in metaphase I. Instead, individual chromosomes line up along the metaphase plate.
In metaphase of meiosis, homologous chromosomes line up in pairs, while in metaphase of mitosis, individual chromosomes line up singly.
In meiosis, metaphase occurs twice (metaphase I and metaphase II) while in mitosis, it occurs only once. The significance of metaphase in meiosis is to ensure proper separation of homologous chromosomes in metaphase I and sister chromatids in metaphase II, leading to genetic diversity. In mitosis, metaphase ensures accurate alignment of chromosomes for equal distribution to daughter cells, maintaining genetic stability.
In metaphase of mitosis, chromosomes line up in the middle of the cell, while in metaphase I of meiosis, homologous chromosomes line up in pairs.
No, homologous chromosomes do not pair up during metaphase 2 as they do in metaphase 1. In metaphase 2, individual chromosomes line up along the metaphase plate.
Metaphase 1 The chromosomes line up on the equatorial (metaphase) plate. Metaphase 2 Kinetochores of the paired chromatids.
It is during the anaphase of meiosis that the replicated homologous chromosomes line up next to each other at the cell's equator.
It organizes the microtubules in mitosis. The microtubules move the chromosomes around the cell during mitosis, most importantly lining the chromosomes up at the metaphase plate in metaphase so that they can split up into the two daughter cells.
Metaphase 1
No, during metaphase II of meiosis, homologous chromosomes do not pair up as they do in metaphase I. Instead, individual chromosomes line up along the metaphase plate.
In metaphase of meiosis, homologous chromosomes line up in pairs, while in metaphase of mitosis, individual chromosomes line up singly.
1. In metaphase 1 spindle formation is completed In metaphase 2 spindle formation take place 2. Bivalent are involved in metaphase 1 Bivalents are not involved in metsphase 2
Metaphase!
The chromosomes are lined up at the equatorial plate during metaphase of mitosis and metaphase II of meiosis. This alignment ensures that each chromosome is properly attached to the spindle fibers before they separate and move to opposite poles.
Metaphase I or Metaphase II? In metaphase I it would have 24. In metaphase II it would have 6.
Metaphase