1887

Chapter 9 : Modeling Genome Size

MyBook is a cheap paperback edition of the original book and will be sold at uniform, low price.

Ebook: Choose a downloadable PDF or ePub file. Chapter is a downloadable PDF file. File must be downloaded within 48 hours of purchase

Buy this Chapter
Digital (?) $30.00

Preview this chapter:
Zoom in
Zoomout

Modeling Genome Size, Page 1 of 2

| /docserver/preview/fulltext/10.1128/9781555816100/9781555814717_Chap09-1.gif /docserver/preview/fulltext/10.1128/9781555816100/9781555814717_Chap09-2.gif

Abstract:

The activity described in this chapter uses models to show the relative sizes of an cell, the chromosome, a typical plasmid, and a gene. The models demonstrate graphically how much longer the chromosome is than the cell. Calculations included in the student questions use the analogies of letters in a book and miles of railroad track to suggest the size of the human genome. DNA is stored in cells in the form of chromosomes and plasmids. The amount of DNA required to store the information necessary for making even a simple organism, such as a bacterial cell, is very large. 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. It is capable of high degrees of folding and coiling, an essential feature for packing it into the cell. Although the degree of folding required to fit the DNA of into the bacterium is impressive, the folding necessary for packaging DNA into a human cell is even more remarkable. The DNA models consist of appropriate lengths of thread, yarn, or string. At the end of the activity students will able to list some differences between the and human genomes.

Citation: Kreuzer H, Massey A. 2008. Modeling Genome Size, p 206-211. In Molecular Biology and Biotechnology: A Guide for Teachers, Third Edition. ASM Press, Washington, DC. doi: 10.1128/9781555816100.ch9

Key Concept Ranking

DNA
0.62178427
Ribosomal RNA
0.5408163
0.62178427
Highlighted Text: Show | Hide
Loading full text...

Full text loading...

References

/content/book/10.1128/9781555816100.chap9a

This is a required field
Please enter a valid email address
Please check the format of the address you have entered.
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error