Question

Define the following :-

1) Gene:-

2) Chromosome :-

3) DNA :-​

Answer 1

1) Gene:-

A unit of heredity which is transferred from a parent to offspring and is held to determine some characteristic of the offspring.

2) Chromosome :-

A threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.

3) DNA :-

Deoxyribonucleic acid, a self-replicating material which is present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information.

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Answer 2

Gene = Functional segment of DNA are called gene

Chromosome = When the cell is ready to divide the chromatin condenses to form thicker , thread like structure called chromosome

DNA = It contain the information necessary for constructing and organising cell.

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