
How does the anaphase stage differ in the two phases of meiosis?
Answer
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Hint: Meiosis is how sexually reproduced eukaryotic cells (plants, animals, and fungi) breed. It is a chromosome reduction process, which means that a diploid cell (this means a cell with two full and identical chromosome sets) is reduced to form haploid cells (these are cells with only one chromosome set).
Complete answer:
During eukaryotic cell division, anaphase is a stage in which the chromosomes are divided into opposite cell poles. The chromosomes are pulled to the metaphase plate, in the middle of the cell, the stage before anaphase, metaphase, While the chromosomes at the beginning of cell division were highly condensed, they continue to condense via anaphase.
Meiosis I is reductional division and equational division is meiosis II. Separate homologous chromosomes in anaphase I; separate sister chromatids in anaphase II. Meiosis occurs to create 4 haploid gametes in a diploid cell. Meiosis begins in cells with paired, replicated chromosomes. Two chromatids display each chromosome. Anaphase I displays migration to reduce the number of chromosomes in half. migration of one homologous chromosome to one pole and migration of the corresponding pair to the opposite pole.
There are two resulting cells at the end of meiosis I with exactly half the number of chromosomes compared to the parent cell: but each chromosome consists of two chromatids. Chromatid separation takes place (like mitotic division) in anaphase II of meiosis. In two chromatids, which were joined at the centromere, each chromosome separates. Separated chromatids are heading towards opposite poles.
There are four daughter cells, each with half the number of chromosomes, at the end of meiosis II. Owing to the genetic recombination that occurs in meiosis I, these daughter cells are genetically distinct from their parent cells. For genetic variation within the population and the correction of genetic defects, this recombination is vital.
Note:
Meiosis is necessary for eukaryotic organisms to reproduce sexually, to promote genetic diversity through recombination, and to repair genetic defects. The constant number of chromosomes is preserved by having the same amount. This is significant since, after fertilization, the chromosome number doubles.
Complete answer:
During eukaryotic cell division, anaphase is a stage in which the chromosomes are divided into opposite cell poles. The chromosomes are pulled to the metaphase plate, in the middle of the cell, the stage before anaphase, metaphase, While the chromosomes at the beginning of cell division were highly condensed, they continue to condense via anaphase.
Meiosis I is reductional division and equational division is meiosis II. Separate homologous chromosomes in anaphase I; separate sister chromatids in anaphase II. Meiosis occurs to create 4 haploid gametes in a diploid cell. Meiosis begins in cells with paired, replicated chromosomes. Two chromatids display each chromosome. Anaphase I displays migration to reduce the number of chromosomes in half. migration of one homologous chromosome to one pole and migration of the corresponding pair to the opposite pole.
There are two resulting cells at the end of meiosis I with exactly half the number of chromosomes compared to the parent cell: but each chromosome consists of two chromatids. Chromatid separation takes place (like mitotic division) in anaphase II of meiosis. In two chromatids, which were joined at the centromere, each chromosome separates. Separated chromatids are heading towards opposite poles.
There are four daughter cells, each with half the number of chromosomes, at the end of meiosis II. Owing to the genetic recombination that occurs in meiosis I, these daughter cells are genetically distinct from their parent cells. For genetic variation within the population and the correction of genetic defects, this recombination is vital.
Note:
Meiosis is necessary for eukaryotic organisms to reproduce sexually, to promote genetic diversity through recombination, and to repair genetic defects. The constant number of chromosomes is preserved by having the same amount. This is significant since, after fertilization, the chromosome number doubles.
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