Genetics

Re: Genetics

by GAYATHRI V -
Number of replies: 0
IMPORTANT FUNCTION OF THE CHROMOSOME:
1. The most important function of chromosomes is to carry the basic genetic material – DNA.
=> DNA provides genetic information for various cellular functions. These functions are essential for growth, survival, and reproduction of the organisms.
2. Histones and other proteins cover the Chromosomes.
=> These proteins protect it from chemical (e.g., enzymes) and physical forces. Thus, chromosomes also perform the function of protecting the genetic material (DNA) from damage during the process of cell division.
3. During cell division, spindle fibers attached to the centromeres contract and perform an important function.
=>The contraction of centromeres of chromosomes ensures precise distribution of DNA to the daughter nuclei.
4. Chromosomes contain histone and non-histone proteins.
=> These proteins regulate gene action, Cellular molecules that regulate genes work by activating or deactivating these proteins. This activation and deactivation expand or contract the chromosome.