0
Anaphase 1:
1. Breakdown of proteins responsible for sister chromatid cohesion along chromatid arms allows homologs to separate.
2. The homologs move toward opposite poles, guided by the spindle apparatus.
3. Sister chromatid cohesion persists at the centromere, causing chromatids to move as a unit towards the same pole.
At anaphase 1 of meiosis, the replicated chromosomes of each homologous pair move toward opposite poles, but the sister chromatids of each replicated chromosome remain attached. In anaphase of mitosis, by contrast, sister chromatids separate.
Reference Cambell et al. Biology (8th Ed) 2008. Benjamin Cummings. pg 254-257
Wiki User
∙ 14y ago
Wiki User
∙ 12y agoThe centromere of each chromated pair becomes attached to one spindle fiber so the chromatids do not separate in anaphase 1.
The centromere divides during anaphase 2 and the chromatids separate and move to opposite ends of the cell.
Wiki User
∙ 8y agoanaphase 1 and 2 both invole the chromosomes separating
Wiki User
∙ 11y agoIn anaphase I, homologous pairs of chromosomes are separated, but still exist as non-identical pairs of sister chromatids. In anaphase II, the sister chromatids are separated.
Add your answer:
Earn +20 pts
When do the chromosomes separate in mitosis?
Sister chromatids separate during Anaphase II of meiosis.*They are pulled apart and then start moving to opposite sides of the cell.
During what phase do the chromosomes move to the center of the cell aligned on the spindle apparatus?
This happens during metaphase. I remember this phase because it is the move phaseof mitosis. The m from move matches the m from metaphase.In mitosis, it happens during metaphase.In meiosis, it happens twice and occurs in metaphase 1 and metaphase 2.
What phase of the cell cycle do centromeres divide?
It depends on whether you're talking about mitosis or meiosis. In mitosis, it is during anaphase. In meiosis, where the cell divides twice, centromeres aren't separated until anaphase II. In anaphase I, chromosomes are arranged as tetrads, and these tetrads are pulled apart to create two daughter cells, each with a full copy of the original cells' diploid chromosome.
How many chromosomes does new cells have at the end of the cycle?
Anaphase 1: Before Meiosis begins, each chromosome is duplicated, like in Mitosis. When the cell is ready for meiosis, each duplicated chromosome is visible under the microscope as two Chromatids. Anaphase 2:The two cells formed during Meioses 1 now begin Meiosis 2. The chromatids of each duplicated chromosome will be separated during this division. (Anaphase also means Meiosis. Meiosis 1 and Meiosis 2 for instance. i hoped this helped!)
What happens during synapsas in meiosis?
The purpose of synapsis in meiosis is to increase genetic variability. It does this as the homolog pairs match up, which means there are 4 chromosomes of like, but possibly unique, DNA data in the grouping. This allows the cell. as it proceeds through Anaphase 1 and Anaphase 2 to separate the individual chromosomes first into 2 pairs then as individuals, which inturn adds to the variability as 1 chromosome goes to each daughter cell. .
What happens to centromere in anaphase 1?
They divide in anaphase 2. which means they separate they become 2 new cells and their the same in chromesomes.
Chromatins separate during?
Chromatids separate during cell division ie anaphase of mitosis and anaphase 2 of meiosis.
During meiosis the chromatids become daughter chromosomes during which stage?
Anaphase 2
When do the chromosomes separate in mitosis?
Sister chromatids separate during Anaphase II of meiosis.*They are pulled apart and then start moving to opposite sides of the cell.
What happens when a cell under go mitosis?
Mitosis is broken up into 4 phases, Prophase, Metophase, Anaphase, and Telophase. During these phases the DNA, which was replicated during Interphase, split and 2 new cells are formed.
Do centromeres divide at anaphase you or II?
anaphase 2
During what in meiosis the chromosomes move apart to the opposite poles of the cell?
The process described in your question is called anaphase. One can remember this step of the cell cycle easily because the chromosomes form 'A' shapes at the ends of the poles- and 'A' is of course the first letter of anaphase. The next step in the cell cycle is telophase- where the cell undergoes cytokinesis- splitting to form two new cells.
During what stage are sister chromatids separated and moved to opposite ends of the cell?
Anaphase. My old biology teacher used to say you could remember it because the chromatids look like hands of bananas when they're being pulled apart. Banana sounds sort of like the 'ana' bit of anaphase if you pronounce it funny.
What is the correct order for the sequence of meiosis?
Interphase Prophase 1 Metaphase 1 Anaphase 1 Telophase 1 Cytokinesis 1 Prophase 2 Metaphase 2 Anaphase 2 Telophase 2 Cytokinesis 2
What is the difference between anaphase 1 and anaphase 2 in meiosis?
Hello, Anaphase 1 and 2 are both part of the process of meiosis, the division of sex cells, and they are both phases where chromosomes are being pulled apart by the centrioles. However, in anaphase one the chromosomes are lined up in homologous pairs, meaning that there are two chromosomes side by side, so when the centrioles pull they are separating two unconnected chromosomes. In anaphase two the chromosomes are lined up in single file. So the centrioles are pulling one chromosome apart. It eventually breaks the link at the centromere of the chromosome and results in two sister chromatids. Hope this is clear enough to understand!
What are the stages of meiosis?
Prophase I Metaphase I Anaphase I Telophase I Prophase II Metaphase II Anaphase II TelophaseII these are just the basics stages they get more detailed as you study each oneprophase 1,metaphase 1,anaphase 1,telophase 1,prophase 2,metaphase 2,anaphase 2,anaphase 2,telophase 2 u welcome lolz
During what phase do the chromosomes move to the center of the cell aligned on the spindle apparatus?
This happens during metaphase. I remember this phase because it is the move phaseof mitosis. The m from move matches the m from metaphase.In mitosis, it happens during metaphase.In meiosis, it happens twice and occurs in metaphase 1 and metaphase 2.
