Identify the correct order in which genetic material is organised (largest to smallest).

Genome, chromosome, gene, nucleotide

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Chromosome, genome, nucleotide, gene

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Chromosome, gene, genome, nucleotide

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Genome, chromosome, nucleotide, gene

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Solution

The correct option is A Genome, chromosome, gene, nucleotide
The genome of an organism constitues all the genes present in the chromosomes. The chromosome contains DNA and the segments of DNA are genes. DNA has a complex structure model with two parallel threads of nucleotides coiled around each other. This arrangement is known as ‘double helix’.

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