Do chromosomes line up in metaphase 1 or 2?
Metaphase II: During metaphase, each of the 23 chromosomes line up along the center of the cell at the metaphase plate. Anaphase II: During anaphase II, the centromere splits, freeing the sister chromatids from each other.
What is the metaphase 1 in meiosis?
In metaphase I, the homologous pairs of chromosomes align on either side of the equatorial plate. … Each daughter cell is haploid and has only one set of chromosomes, or half the total number of chromosomes of the original cell. Meiosis II is a mitotic division of each of the haploid cells produced in meiosis I.
What chromosomes line up during 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.
What happens in metaphase I?
At metaphase I, the homologous chromosomes move to the center of the cell and orient themselves along an equatorial plane, forming the so-called metaphase plate.
How chromosomes line up during metaphase meiosis?
In metaphase II of meiosis, and metaphase of mitosis, chromosomes line up along the metaphase plate due to the action of microtubule spindle fibres emanating from the centrosomes located at opposite cell poles. These fibres are attached to the chromosomes by kinetochores at the centromeres of the chromosomes.