WebJan 14, 2024 · answered • expert verified With your group, consider the effect on a cell if the sister chromatids did not line up correctly during metaphase. For example, if some lined up side by side instead of single file along the middle, how might this affect the resulting cells? See answer Advertisement ShyzaSling Answer: WebThis is different from the way chromosomes line up single file in mitosis and metaphase II (in meiosis II). The pairs line up in random order in metaphase I, which means that each parental homolog (maternal or paternal) can line up to either pole of the cell. This causes chromosomal differences in the daughter cells of meiosis I. Anaphase I
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Webreplication of the chromosomes, there are 46 chromosomes (92 chromatids) present in the germ cells. 2. Meiosis I: Meiosis I is the first division, the reduction division, of meiosis. There are 4 sub-phases in meiosis I: • Prophase I: During prophase I, homologous chromosomes line up side by side. They are physically in contact with one another. WebIn the third step of mitosis, called metaphase, each chromosome lines up in a single file line at the center of the cell. By this point in time, the membrane enclosing the nucleus has dissolved, and mitotic spindles have attached themselves to each chromatid in all the … how do you break up gallstones
Meiosis - Definition, Stages, Function and Purpose - Biology …
WebAll of the chromosomes line up, single file, in the center of the cell. To simulate: 1. Center the paired strands along an imaginary line across the center of the cell. Line up the strands so they are centered in each daughter cell. I. Anaphase II What happens: The chromatids of each paired strand separate and are drawn to opposite poles of the ... WebJun 11, 2024 · During meiosis I, these homologous chromosomes line up and divide. This leaves 23 chromosomes in each cell, each chromosome consisting of sister chromatids. These chromatids may no longer be identical, as crossing-over may have occurred during metaphase I of meiosis I. WebJun 1, 2024 · In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46. Twenty-two of these pairs, called autosomes, look the same in both males and females. The 23rd pair, the … pho in leavenworth ks