What is the purpose of mitosis and meiosis?​

Answers

Why is Mitosis Important?

Mitosis is important for three main reasons: development and growth cell replacement and asexual reproduction.

1. Development and growth

After meiosis has produced a gamete, and this has fused with another gamete to form an embryo, the embryo grows using mitosis. This growth continues throughout an organism’s life, in plants, animals, and fungi. In this way, the original chromosomal set is preserved.

2. Cell replacement

This occurs when the original cell is damaged or wounded. New cells are created to replace those that were damaged. Examples of this are the healing of a cut or a broken bone. When old cells die, new ones replace them to ensure continuing functionality.

3. Asexual reproduction

Single-celled organisms and certain multicellular organisms use mitosis for asexual reproduction. This includes reproduction by fragmentation, as in the case of planaria, and reproduction by budding, as in the case of sea anemones. Many plants reproduce using mitosis.

hope it will help

Explanation:

Mitosis is a process where a single cell divides into two identical daughter cells (cell division). During mitosis one cell? divides once to form two identical cells. The major purpose of mitosis is for growth and to replace worn out cells.

Mitosis    What does it mean?Mitosis is a critical process which duplicates a cell. It divides a particular cell to make more cells of the same type.For example, you have a cut on your skin. Your skin cells will undergo mitosis to repair the damage.    How do mitosis occur? / What is the process?

Here is the process of Mitosis:

Prophase

- This is the first step. The nucleus is still in the cell. The chromosomes are condensing which makes them to thicken and be visible.

   2. Metaphase

- In this stage, the chromosomes line up in the middle of the cell, thus the nucleus is not in the cell anymore.

   3.  Anaphase

- The chromosomes separate from each other, and move to the two poles of the cell. The chromosomes move because of fibers that are called spindles.

  4. Telophase

- The chromosomes are on the actual ends of the cell, and a new nucleus is forming within the two sides.

   Cytokinesis

- this is responsible for the final separation into two cells by separating      the cytoclasm, which completes the process of mitosis.

   Purpose of MitosisWithout mitosis, we cannot understand Growth and Repair happens because both of them requires a lot of cells of the same type. Understanding mitosis is also important for cancer research. Cancer is uncontrolled cell growth, which is also uncontrolled mitosis. Meiosis    What does it mean?Meiosis is a process that contributes to genetic variety. Unlike Mitosis, which makes body cells, Meiosis creates sperm cells and egg cells, otherwise known as gametes.     How does Meiosis occur? / What is the process?

Here is the process:

     1. Prophase I

- Where the chromosomes starts to condense and thicken. They will actually line up with their homologous pair. Homologous means that the cells are approximately of the same height and contain the same type of genes.

    2. Metaphase I

- Chromosomes are in the middle, by pair.

    3.  Anaphase I

-  The chromosomes  move to the two poles of the cell. The chromosomes move because of fibers that are called spindles.

    4. Telophase I

- The chromosomes are on the actual ends of the cell, and a new nucleus is forming within the two sides.

    5. Prophase II

- Spindles form again

    6. Metaphase II

- The chromosomes are lined in the middle without pairs.

     7. Anaphase II

- The chromotids are pulled away from each other by the spindles.

     8. Telophase II

- The nucleus is reforming and the cells are starting to separate, which makes 4 cells.

Cytokinesis

- The final separation of the cells.

     Purpose of MeiosisMeiosis is essential to many sexually-reproducing animals to ensure that the same number of chromosomes in the offspring as in the parents

#VerifiedAndBrainly

#BrainlyHelpandShare

#CarryOnLearning



Do you know the answer?

Other questions on the subject: Science

Science, 28.10.2019, cyrilc310
Negative lifestyle can put a lot of impact on your circulatory and respiratory systems....Read More
1 more answers
Science, 14.11.2019, kateclaire
True, because a mantle is a solid rock but it behaves like a liquid. and a liquid has ability to...Read More
1 more answers
Science, 14.11.2019, cyrishlayno
In the southern hemisphere, spring begins on this day. winter in the northern hemisphere begins  december  21 or 22, when the  north pole  is  tilted ...Read More
2 more answers
Science, 14.11.2019, jasminsexy
1836 electrons , mass of proton is equals to 1.672x10^-27 and mass of electron is equals to 9.11x10^-31....Read More
3 more answers
Science, 14.11.2019, sicienth
hey! how are you? my name is maria, 19 years old.   yesterday broke up with a guy, looking for casual sex.write me here and i will give you my phone number - **my nickname -...Read More
1 more answers