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| 1. |
Give at least 5or 6 different b/w mitosis and meiosis???? |
| Answer» \tTypesMitosisMeiosisInterphaseEach chromosome replicates. The result is two genetically identical sister chromatidsInterphase – Chromosomes not yet visible but DNA has been duplicated or replicated.ProphaseProphase I – Crossing-over recombination – Homologous chromosomes (each consists of two sister chromatids) appear together as pairs. Tetrad is the structure that is formed. Segments of chromosomes are exchanged between non-sister chromatids at crossover points known as chiasmata (= crossing-over)Prophase –Each of the duplicated chromosomes appears as two identical or equal sister chromatids, The mitotic spindle begins to form. Chromosomes condense and thickenMetaphaseMetaphase I Chromosomes adjust on the metaphase plate. Chromosomes are still intact and arranged as pairs of homologuesMetaphase -The chromosomes assemble at the equator at the metaphase plateAnaphaseAnaphase I Sister chromatids stay intact. But homologous chromosomes drift to the opposite or reverse poles.Anaphase – The spindle fibres begin to contract. This starts to pull the sister chromatids apart. At the end of anaphase, a complete set of daughter chromosomes is found each pole.Types of ReproductionAsexualSexualOccurs inEukaryotic cellsDiploid cellsFunctionGeneral growth and cell reproduction, repair of the body.Genetic diversity through sexual reproductionCytokinesisOccurs in TelophaseOccurs in Telophase I and in Telophase II.KaryokinesisOccurs in Interphase.Occurs in Interphase IDiscovered byWalther FlammingOscar Hertwig\t | |