Question

What is the main function of Genes and DNA

Answer 1

Segments of the DNA molecule are called genes. Genes control the structure and function of the cells and of the body. They transmit the heredity characteristics from parents to offspring. Hence, they are said to be the functional units of heredity.

DNA means Deoxyribonucleic acid. Chromosomes are mainly made up of DNA. This acid was reported to be only in the nucleus of the cells. Hence, it was named nucleic acid. Later it was discovered the It is also present in other parts of the cell too.

It's main functions are:
i) Encoding Information
ii) Mutation and Recombination
iii) Gene Expression

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