DNA is a genetic material consisting of a long stretch of nucleotide sequences with 2 m length. Chromosomes carry genetic or hereditary information from parents to offspring. Homologous chromosomes carry two forms of a gene in the same locus; these are known as alleles. A complete set of genetic materials (both coding and non-coding regions of DNA) of an organism is called a genome. The total human genome consists of about 3.1 billion base pairs and nearly 20,000 protein coding genes.

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Chapter 4.4, Problem 18BYGO

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DNA is a genetic material consisting of a long stretch of nucleotide sequences with 2 m length. Chromosomes carry genetic or hereditary information from parents to offspring. Homologous chromosomes carry two forms of a gene in the same locus; these are known as alleles. A complete set of genetic materials (both coding and non-coding regions of DNA) of an organism is called a genome. The total human genome consists of about 3.1 billion base pairs and nearly 20,000 protein coding genes.

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