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Chapter 9 : Sizes of the and Human Genomes

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Sizes of the and Human Genomes, Page 1 of 2

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Abstract:

DNA is stored in cells in the form of chromosomes and plasmids. One of the wonders of biology is that cells are able to store and access the great lengths of DNA needed to encode their hereditary information. The "average" protein-encoding bacterial gene is considered to be 1,200 bp in length. It is capable of high degrees of folding and coiling, an essential feature for packing it into the cell. The chromosome is circular and is attached to the cell membrane. The real chromosome occupies about 10% of the cell volume. The human genome can be related to a length of railroad track. The railroad ties represent the base pairs, and the rails represent the sugar-phosphate backbone of the DNA molecule.

Citation: Kreuzer H, Massey A. 2008. Sizes of the and Human Genomes, p 182-184. In Molecular Biology and Biotechnology: A Guide for Students, Third Edition. ASM Press, Washington, DC. doi: 10.1128/9781555817480_ch9

Key Concept Ranking

DNA
0.59451306
Ribosomal RNA
0.54761904
0.59451306
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