The right option is c. Nucleotide, DNA, allele, gene, chromosome
Nucleotide is the basic structural unit (monomer) of a nucleic acid such as DNA.
DNA is a polymer of nucleotides that contains genetic information of a cell. A DNA nucleotide is made up of three parts which are; a nitrogen base, a five-carbon sugar, and a phosphate group.
An allele is a possible form of a gene. Genes usually have two alleles; a recessive allele and a dominant allele.
A gene is a small part of DNA that stores information.
Chromosomes are thread-like structures, composed of protein and one molecule of DNA that carry genetic information in the form of genes.
