Question

define the term GENE

Answer 1

A gene is a specific sequence of a nucleotide on a chromosome that encodes particular proteins that express in form of particular features of body.
OR
Genes are the basic unit of heredity. They are the part of DNA which controls the expression of a character.

Answer 2

Every biological characteristics of different species are precisely distributed among them,due to the biological genetics.

There are many components which are related with the genetics.

But the most important component is gene.

Gene is actually random sequence of nucleotides in the molecular structures of DNA and RNA.

This gene is seperate for every species which causes the different biological characteristics in different species.