Question

Arrange them on the basis of increasing size.

• A. Nucleotide, chromosome, gene, genome
• B. Genome, chromosome, nucleotide, gene
• C. Nucleotide, genome, gene, chromosome
• D. Nucleotide, gene, chromosome, genome

Answer 1

The correct option is D Nucleotide, gene, chromosome, genome

Nucleotides are monomers of nucleic acids (DNA and RNA).
Chromosome is a molecule of DNA. It contains genes.
Genome is the complete set of genetic material present in a cell or an organism.
Hence, on the basis of size, it can be arranged as:

$\mathrm{Nucleotide}\to \mathrm{Gene}\to \mathrm{Chromosome}\to \mathrm{Genome}$