Question

What is genes?How it is formed? Where it is found?

Answer 1

they are located on chromosome
genes are the units which carry genetic material from one generation to 2nd

Answer 2

Genes maybe defined as the specific sequences of nucleotides on a chromosome,that encode some particular proteins which express in the form of some particular feature of the body.
Genes are formed by chromosome replication.
It is located on chromosomes.