Table of Contents
- 1 In which phase of meiosis do the chromosomes line up in the middle?
- 2 During which phase of meiosis do tetrads align on the spindle?
- 3 In which phase of meiosis do the paired homologs separate and migrate to opposite ends of the cell?
- 4 During which phase of meiosis does crossover occur?
- 5 What phase of meiosis does chromosomes line up along equator not in homologous pairs?
- 6 What happens in the metaphase stage of meiosis?
- 7 Where do the chromosomes line up during meiosis?
- 8 What are the two major phases of meiosis?
- 9 When does the tetrad occur in meiosis I?
In which phase of meiosis do the chromosomes line up in the middle?
metaphase
During metaphase, the cell’s chromosomes align themselves in the middle of the cell through a type of cellular “tug of war.” The chromosomes, which have been replicated and remain joined at a central point called the centromere, are called sister chromatids.
During which phase of meiosis do tetrads align on the spindle?
In prophase I of meiosis, the homologous chromosomes form the tetrads. In metaphase I, these pairs line up at the midway point between the two poles of the cell to form the metaphase plate.
In which phase of meiosis do tetrads align along cell equator?
Metaphase I
Metaphase I: Brief stage in which tetrads line up in the equatorial plane of the cell.
In which phase of meiosis do the paired homologs separate and migrate to opposite ends of the cell?
anaphase I
During anaphase I, the homologous chromosome pairs separate and are pulled to opposite poles of the cell by spindle fibers attached to the centrioles.
During which phase of meiosis does crossover occur?
prophase I
Although a cell needs to undergo interphase before entering meiosis, interphase is technically not part of meiosis. Crossing over occurs only during prophase I.
During which stage of meiosis do tetrads line up at the equator metaphase I Telophase I metaphase II anaphase II anaphase I?
Tetrads line up along the equator during this phase: METAPHASE I 18. At the end of meiosis I, 2 daughter cells are created.
What phase of meiosis does chromosomes line up along equator not in homologous pairs?
Meiosis terms
| A | B |
|---|---|
| chromosomes line up along equator, not in homologous pairs | metaphase 2 |
| crossing over occurs | prophase 1 |
| sister chromatids separate | anaphase 2 |
| homologous chromosomes line up at equator | metaphase 1 |
What happens in the metaphase stage of meiosis?
Metaphase is a stage in the cell cycle where all the genetic material is condensing into chromosomes. These chromosomes then become visible. During this stage, the nucleus disappears and the chromosomes appear in the cytoplasm of the cell.
Why do chromosomes line up in the middle of the cell during mitosis?
Metaphase. Chromosomes line up at the metaphase plate, under tension from the mitotic spindle. The two sister chromatids of each chromosome are captured by microtubules from opposite spindle poles. In metaphase, the spindle has captured all the chromosomes and lined them up at the middle of the cell, ready to divide.
Where do the chromosomes line up during meiosis?
In this meiosis phase, the pairs of homologous chromosomes move up the equator of the cell and line up on the metaphase plate. The process is called random assorting where maternal and paternal chromosomes line up in random order, aligning themselves on either side of the equator, which leads to genetic diversity among offspring.
What are the two major phases of meiosis?
Meiosis consists of two cell divisions namely meiosis 1 and meiosis 2. The meiosis phases are divided into prophase, metaphase, anaphase and telophase respectively.
How many daughter cells are produced during meiosis?
There are two stages or phases of meiosis: meiosis I and meiosis II. Before a dividing cell enters meiosis, it undergoes a period of growth called interphase. At the end of the meiotic process, four daughter cells are produced.
When does the tetrad occur in meiosis I?
The tetrad occurs during the first phase of meiosis. It is the foursome of chromatids that forms when replicated homologous chromosomes align. It must be formed for crossing over to occur. It is broken apart when the homologous chromosomes separate in meiosis I.