What is the difference between meiosis and mitosis.?

Question

Answer

The main difference being that between prophase and metaphase of Meiosis I the pairs of homologous chromosomes randomly exchange their genetic information. ......

Answer

The difference between mitosis and meiosisis in the process by which each form daughter cells from a parent cell. Mitosis has one round of cellular division and genetic separation whereas meiosis has two rounds. The two processes are also different because in mitosis the daughter cells are exactly identical to the parent cells compared to meiosis where the daughter cells are not genetically identical to the parent.Mitosis gives two nuclei, and hence two cells, while meiosis gives four

Answer

**Difference between Meiosis and Mitosis**

Meiosis and mitosis are two different types of cell division processes that occur in living organisms. They play crucial roles in the growth, development, and reproduction of organisms. While both processes involve the division of cells, they have distinct differences in terms of purpose, stages, and outcomes.

**1. Purpose:**

- **Mitosis:** The primary purpose of mitosis is to create two identical daughter cells, which are genetically identical to the parent cell. It is responsible for growth, tissue repair, and asexual reproduction in organisms.
- **Meiosis:** Meiosis, on the other hand, has the purpose of producing gametes (sex cells) for sexual reproduction. It reduces the chromosome number by half, ensuring genetic diversity in offspring.

**2. Stages:**

- **Mitosis:** Mitosis consists of four main stages: prophase, metaphase, anaphase, and telophase. During prophase, chromosomes condense, the nucleus dissolves, and spindle fibers form. In metaphase, chromosomes align at the cell's equator. Anaphase sees the separation of sister chromatids, which are pulled towards opposite poles. Finally, during telophase, two nuclei form, and the cell divides, resulting in two identical daughter cells.
- **Meiosis:** Meiosis comprises two consecutive cell divisions, known as meiosis I and meiosis II, each with its own set of stages. Meiosis I consists of prophase I, metaphase I, anaphase I, and telophase I. In prophase I, homologous chromosomes pair up and exchange genetic material in a process called crossing over. Metaphase I involves the alignment of homologous pairs along the cell's equator. In anaphase I, homologous chromosomes separate and move to opposite poles. Telophase I leads to the formation of two daughter cells. Meiosis II, similar to mitosis, involves prophase II, metaphase II, anaphase II, and telophase II. Sister chromatids separate in anaphase II, resulting in the formation of four haploid daughter cells.

**3. Genetic Variation:**

- **Mitosis:** Mitosis produces genetically identical daughter cells, as the chromosomes are replicated and divided equally between the two cells. Hence, there is no genetic variation generated through mitosis.
- **Meiosis:** Meiosis creates genetic variation through processes like crossing over and the random alignment of homologous pairs during metaphase I. Crossing over leads to the exchange of genetic material between homologous chromosomes, resulting in unique combinations of alleles in the resulting gametes. Additionally, the random assortment of chromosomes during metaphase I further contributes to genetic diversity.

**4. Resulting Cells:**

- **Mitosis:** Mitosis results in the formation of two diploid daughter cells, each containing the same number of chromosomes as the parent cell. These cells are genetically identical and have the potential to differentiate into specialized cell types.
- **Meiosis:** Meiosis produces four haploid daughter cells, each containing half the number of chromosomes compared to the parent cell. These cells are genetically diverse and serve as gametes for sexual reproduction.

In conclusion, while both meiosis and mitosis involve cell division, their purposes, stages, genetic variation, and resulting cells differ significantly. Mitosis creates identical cells for growth and repair, while meiosis generates genetically diverse gametes

Answer

Meiosis has two rounds of genetic separation and cellular division... while mitosis only has one of each . in meiosis homologous chromosomes separate leading to daughter cells that are not genetically identical.... in mitosis the daughter cells are identical to the parent as well as to each other..

Answer

Mitosis and meiosis are both processes which describe the production of new cells.
1)Mitosis produces 2 daughter cells which are genetically identical to the parent cell while meiosis produce 4 daughter cells with genetic variations
2)meiosis leads to the production of germ cells, which are cells that give rise to gametes.while Mitosis mainly acts on somatic cells and helps in growth and repair of body parts
3). Mitosis produces diploid cells (46 chromosomes) whereas meiosis produces haploid cells (23 chromosomes).
4)Mitosis consists of one stage whereas meiosis consists of two stages.

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