​​Q12: What is the significance of meiosis?

Answer:

Meiosis is an important process in reproducing organisms. It specifically takes place in reproductive cells, leading to the formation of gametes that possess half the number of chromosomes compared to the reproductive cells. The fusion of two gametes, one from each parent, results in the formation of a zygote with a doubled number of chromosomes.

The primary role of meiosis is to maintain the chromosome number in sexually reproducing organisms. Additionally, it serves other significant purposes, such as:

1. Gamete formation for reproduction.
2. Maintenance of a fixed number of chromosomes during gametogenesis.
3. Independent assortment of paternal and maternal chromosomes during meiosis, leads to the reshuffling of chromosomes and the traits they control. This variation is beneficial for breeders in improving useful plants and animals.
4. Introduction of new combinations of traits or variations through meiosis.
5. Occurrence of chromosomal and genomic mutations due to irregularities in the meiotic division. Some mutations can be advantageous for the organism.

NCERT Solutions for class 11 Chapter-10 Cell Cycle and Cell Division: The chapter on Cell Cycle and Cell Division is important for students approaching the board exams. This article introduces NCERT solutions designed to help students explain the concepts of further learning and how to write to get good grades on exams. The solutions are presented in very simple language for ease of understanding.

NCERT CBSE Chapter 10 Solutions Cell Cycle and Cell Division of Class 11 explains The field of biology recognizes growth and reproduction as the two fundamental characteristics of cells in all living organisms. These attributes are extensively explored in this chapter.  Revise the basic concepts of the Cell Cycle and Cell Division for quick revision and class notes.