Please list 3 similarities and 3 differences between mitosis and meiosis.
Answers
Answer:
Difference between Mitosis and Meiosis
Mitosis
Meiosis
Interphase
Each chromosome replicates. The result is two genetically identical sister chromatids Chromosomes not yet visible but DNA has been duplicated or replicated
Prophase
Prophase –Each of the duplicated chromosomes appears as two identical or equal sister chromatids, The mitotic spindle begins to form. Chromosomes condense and thicken Prophase 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)
Metaphase
Metaphase -The chromosomes assemble at the equator at the metaphase plate Metaphase I Chromosomes adjust on the metaphase plate. Chromosomes are still intact and arranged as pairs of homologues
Anaphase
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 Anaphase I Sister chromatids stay intact. However, homologous chromosomes drift to the opposite or reverse poles
Mode of Reproduction
Asexual Reproduction Sexual Reproduction
Occurrence
All the cells Reproductive cells
Function
General growth and repair, Cell reproduction Genetic diversity through sexual reproduction
Cytokinesis
Occurs in Telophase Occurs in Telophase I and in Telophase II
Discovered by
Walther Flemming Oscar Hertwig