Significance of prophase 1 of meiosis in reproduction
Answers
Answer:
Explanation:
Mitosis and cytokinesis together define the mitotic (M) phase of the cell cycle.
Mitosis knows as equational division, because, eukaryotic cell separates the chromosomes in its cell nucleus into two identical sets in two daughter nuclei. Mitosis is followed by cytokinesis (division of cell into two daughter cells with equal cellular components). Mitosis is divided into following four stages.
The mitotic phases are:
Prophase : The two chromatids remain attached to centromere, the nuclear envelope break down and disappear, prophase the spindle begins to form, the centrioles separate and move apart and asters appear around them.
Metaphase : The chromosomes congregate at an equatorial plane midway between the two ends to which the spindle tapers. The chromatids are attached to the spindle fibers at the centromeres.
Anaphase: The two chromatids of each chromosome separate and move to opposite poles, as if pulled along the spindle fibers by the centromeres.
Telophase : New nuclear envelopes form around the two groups of daughter chromosomes the new nucleoli begin to appear, the formation of the two daughter nuclei is completed and the spindle fibers disappear.
Explanation:
Prophase is the firs
Chromatin begins to condense and is visible in the form of chromosomes. Spindle fibres begin to form as well as centrioles. Prophase is important because this is when chromatin becomes chromosomes so the right number of chromosomes can be distributed equally to each daughter cell produced.