Question

what is gene ? write its functions.

Answer 1

Gene is a segment of coding DNA (DNA that instructs the structure and function of cells throughout the body) composed of a specific sequence of nucleotides. The gene is the basic unit of inheritance that directs every facet of the body’s appearance and functions. Genes align along chromosomes in pairs.

Answer 2

Explanation:

1. Chromosomes are made up or DNA molecule .
2. In the DNA molecule there are nucleøtides consisting of nitrogenøus bases , Deøxyribose sugar and phøsphoric acid . The sequence of nucleotides in the DNA molecule is called a gene . The segment of DNA is thus considered as a Gene's .
3. Since the science of nucleotides is different in different organism , therefore there are many Gene's.
4. Due to genes structure and function of every cell is determined . The functions of these cells are regulated due to Gene's.
5. The information about the protein synthesis is also stored inside the genes.
6. Gene's are functional units of heredity . They transmit the hereditary characters of the parents to their offspring . Father's genes in the form of his DNA pasś through her ovum. Therefore there are many resemblances between parents and their children.