Question

ПОМОГИТЕ ПОЖАЛУЙСТА! В чём отличия между мийозом и митозом?

Answer 1

Мейоз - способ деления эукариотов, где одна клекта с двойным набором хромосом (2n) дает начал четырем клеткам с наьором n.
Митоз - способ леления эукариотических клеток, при котором и дочерние и материнские клетки имеют генетический набор 2n

Answer 2

Мітоз це шлях розмноження первинних статевих клітин, з утворенням сперматоцитів і овоцитів 1 порядку
мійоз це ріст первинних статевих клітин , з утворенням сперматозоїдів і яй цеклітини

Answer 3

Differences between Meiosis and Mitosis

Meiosis and mitosis are two different processes involved in cell division. Here are the key differences between them:

1. Purpose: - Mitosis: Mitosis is a type of cell division that occurs in somatic cells (non-reproductive cells) and is responsible for growth, repair, and maintenance of tissues and organs in multicellular organisms. - Meiosis: Meiosis is a specialized type of cell division that occurs in reproductive cells (germ cells) and is responsible for the formation of gametes (sperm and egg cells) for sexual reproduction.

2. Number of Divisions: - Mitosis: Mitosis involves a single division of the cell, resulting in the formation of two identical daughter cells. - Meiosis: Meiosis involves two divisions of the cell, resulting in the formation of four non-identical daughter cells.

3. Chromosome Number: - Mitosis: In mitosis, the daughter cells have the same number of chromosomes as the parent cell. This is referred to as the diploid number (2n). - Meiosis: In meiosis, the daughter cells have half the number of chromosomes as the parent cell. This is referred to as the haploid number (n).

4. Genetic Variation: - Mitosis: Mitosis produces genetically identical daughter cells to the parent cell. There is no exchange or mixing of genetic material. - Meiosis: Meiosis introduces genetic variation through a process called recombination or crossing over. During meiosis, homologous chromosomes exchange genetic material, resulting in new combinations of genes.

5. Occurrence: - Mitosis: Mitosis occurs in both plants and animals throughout the life cycle for growth and tissue repair. - Meiosis: Meiosis occurs only in the reproductive organs of sexually reproducing organisms to produce gametes.

6. Stages: - Mitosis: Mitosis consists of four stages: prophase, metaphase, anaphase, and telophase. - Meiosis: Meiosis consists of two rounds of division, each with its own set of stages: prophase I, metaphase I, anaphase I, telophase I, and prophase II, metaphase II, anaphase II, and telophase II.

Please note that the information provided above is based on search results and is subject to verification.