Question

In: Biology

Describe what happens in each of the following phases: Metaphase of Mitosis Metaphase I of Meiosis...

Describe what happens in each of the following phases:

  • Metaphase of Mitosis
  • Metaphase I of Meiosis I
  • Metaphase II of Meiosis II
  • Anaphase of Mitosis
  • Anaphase I of Meiosis I
  • Anaphase II of Meiosis II

Solutions

Expert Solution

In metaphase of mitosis, chromosomes gets arranged at the centre of the cell on the metaphase plate with sister chromatids on either side of the plate. The mitotic spindle line up the chromosomes at the centre , and they are ready to divide.

In metaphase 1 of meiosis I, homologous pair of chromosomes (bivalents) are arranged at two parallel metaphase plate at the centre of the cell. They are attached to the fully formed meiotic spindle.So that two copies of chromosomes are found in the two daughter cells of meiosis I. Kinetochore microtubules from each pole are attached to kinetochore of chromosomes.

In metaphase 2 of meiosis II, the spindle fibres again draws the chromosomes to the centre in two daughter cells produced from the first meiosis. The arrangement of chromosomes on the single plane at the centre in the preparation of centromeres to divide. Kinetochores are pointing towards the opposite poles.

In anaphase of mitosis, newly replicated chromosomes break at the centromeres and sister chromatids move to opposite ends of the pole by spindle fibres.

In anaphase 1 of meiosis I , two chromosomes from each bivalent split and move towards opposite poles of the cell by meiotic spindle. Sister chromatids remain attached at the centromeres.

In anaphase 2 of meiosis II , the centromeres divide and the spindle fibers seperate and pull the chromatids to opposite poles.


Related Solutions

Describe what happens during each of the following Mitosis stages Prophase: Prometaphase: Metaphase: Anaphase: Telophase: Cytokinesis:
Describe what happens during each of the following Mitosis stages Prophase: Prometaphase: Metaphase: Anaphase: Telophase: Cytokinesis:
Describe similarities and/or differences between the phases and outcomes of mitosis and meiosis. a. Mitosis vs....
Describe similarities and/or differences between the phases and outcomes of mitosis and meiosis. a. Mitosis vs. meiosis b.Chromosome number in all stages
For meiosis, describe the major differences between metaphase I and metaphase II? How is anaphase I...
For meiosis, describe the major differences between metaphase I and metaphase II? How is anaphase I in meiosis different than anaphase in mitosis? Explain how meiosis II is more like mitosis than meiosis one is. Define a tetrad of chromosomes. In what ways are homologous chromosomes similar to each other and different than each other? Please type the answer. Don't write on the paper, type the answer here
For meiosis, describe the major differences between metaphase I and metaphase II? How is anaphase I...
For meiosis, describe the major differences between metaphase I and metaphase II? How is anaphase I in meiosis different than anaphase in mitosis? Explain how meiosis II is more like mitosis than meiosis one is. Define a tetrad of chromosomes. In what ways are homologous chromosomes similar to each other and different than each other? Please answer all question in full typed
For meiosis, describe the major differences between metaphase I and metaphase II? How is anaphase I...
For meiosis, describe the major differences between metaphase I and metaphase II? How is anaphase I in meiosis different than anaphase in mitosis? Explain how meiosis II is more like mitosis than meiosis one is. Define a tetrad of chromosomes. In what ways are homologous chromosomes similar to each other and different than each other? Please answer all question in full typed
Part I: Mitosis Where are the chromosomes during metaphase? What happens to the nuclear envelope during...
Part I: Mitosis Where are the chromosomes during metaphase? What happens to the nuclear envelope during prophase? What happens to actual chromosomes in prophase? When do the nucleoli disappear? When do the nucleoli reappear? How is cytokinesis different in plants and animals? What is the result of mitosis? What cytoskeletal structure makes up the spindle apparatus? Does the ploidy level of the cell change because of mitosis? What is the function of the centromere? As our cell has centrioles, what...
What happens during Meiosis I
What happens during Meiosis I
Describe in detail the similarities and differences between mitosis, meiosis I and meiosis II. Make sure...
Describe in detail the similarities and differences between mitosis, meiosis I and meiosis II. Make sure your answer includes the formation of tetrads and whether the products are haploid or diploid and have replicated or unreplicated DNA.
Describe each of the phases of mitosis and the important events taking place in each. Be...
Describe each of the phases of mitosis and the important events taking place in each. Be sure to include when chromatin/chromosome number increases/decreases.
Describe each of the phases of meiosis and the important events taking place in each. Be...
Describe each of the phases of meiosis and the important events taking place in each. Be sure to include when chromatin/chromosome number increases/decreases.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT