Difference between equational division and reductional division?

Question

Answer

Well...

¶¶ Equational division = known as MITOSIS...

• in this both parents and progeny have same number of chromosome.
• it is required for the division or formation of body cell.

>> e.g. eye cells ( 2n ) means diploid - two set of chromosome.

will divide and give two eye cells of same Nature...

¶¶ Reductional division = known as MEIOSIS...

• in this the number of chromosome in parents is double the number of chromosome in progeny.
• required for gamete formation.

>> e.g. sperm and ovum ( n ) means haploid - one set of chromosome..

will divide and give ( 2n ) diploid means ZYGOTE...

hope you will understand it..!!

Answer

Answer

Meiosis I, often referred to as reductional division , is the first division in meiosis that reduces the genetic material from diploid (two sets of chromosomes) to haploid (one set of chromosomes). ... The tetrads segregate into 2 cells during meiosis I, creating 2 haploid cells. Meiosis II is equational division.

Answer

Equational Division:
Equational division is a type of cell division that occurs in the cells of multicellular organisms during growth and development. It involves the division of cells in such a way that the two daughter cells produced are identical to each other and to the parent cell. Equational division is also known as mitosis.

Process of Equational Division:
Equational division consists of several distinct phases, including prophase, metaphase, anaphase, and telophase. During prophase, the chromatin condenses and becomes visible as chromosomes. The nuclear envelope disintegrates, and spindle fibers form. In metaphase, the chromosomes align along the cell's equator. During anaphase, the sister chromatids separate and move towards opposite poles of the cell. Finally, in telophase, the chromosomes decondense, and the nuclear envelope reforms around each set of chromosomes. Cytokinesis, the process of cell division, follows the completion of mitosis.

Functions of Equational Division:
Equational division is essential for growth, repair, and reproduction in multicellular organisms. It allows for the production of identical daughter cells, which aids in the growth and development of an organism. Equational division is also important for tissue repair, as damaged cells can be replaced through the process of mitosis. Additionally, equational division plays a crucial role in asexual reproduction, where a single parent organism can generate offspring that are genetically identical to itself.

Reductional Division:
Reductional division, also known as meiosis, is a type of cell division that occurs in specialized cells called germ cells. It involves the division of cells in such a way that the resulting daughter cells have half the number of chromosomes as the parent cell. Reductional division is essential for sexual reproduction and the production of gametes (sperm and eggs).

Process of Reductional Division:
Reductional division consists of two consecutive divisions, known as meiosis I and meiosis II. Meiosis I is the reductional division, where homologous chromosomes pair up and undergo genetic recombination. The homologous chromosomes then separate, resulting in two daughter cells with half the number of chromosomes but still consisting of sister chromatids. Meiosis II is similar to equational division, where the sister chromatids separate, resulting in the formation of four haploid daughter cells.

Functions of Reductional Division:
Reductional division is vital for sexual reproduction, as it allows for the creation of genetically diverse offspring. During meiosis, genetic recombination occurs through the exchange of genetic material between homologous chromosomes, resulting in new combinations of genes. This genetic variation is crucial for the adaptation and evolution of species. Reductional division also ensures the maintenance of a constant chromosome number across generations, as the fusion of gametes during fertilization restores the diploid chromosome number in the offspring.

In summary, equational division (mitosis) is responsible for growth, repair, and asexual reproduction, producing genetically identical daughter cells, while reductional division (meiosis) is essential for sexual reproduction, generating genetically diverse gametes for the formation of offspring.

Similar Class 10 Doubts

Differentiate between social difference and division with examples?

In Northern Ireland difference between protestants and Roman catholics led to (

what is the difference between euclid division lemma and euclid division algorithm?

What is the difference between Mitotic and meiotic cell division? Explain briefly.?

Difference between oxidation and reduction reaction?

Top Courses for Class 10View all

Science Class 10

Social Studies (SST) Class 10

Mathematics (Maths) Class 10

English Grammar Advanced

English Grammar Basic

Top Courses for Class 10

Top Courses for Class 10

Suggested Free Tests

Related Content

About Class 10

Class 10 Study Material

Class 10 All Subjects

NCERT Textbook Solutions

Other Classes

Important Links

Company