Table of Contents
How do you calculate the weight of DNA?
The molecular weight or molar mass of any double-stranded DNA fragment can therefore be calculated by multiplying its length (in bp) by 650 and the answer will be expressed as daltons or g/mol.
How is DNA length calculated?
The total length of the DNA can be easily obtained by applying a simple equation. The total length of DNA (double helix) = total numbers of base pairs × distance between two consecutive base pairs.
What is the weight of DNA?
General Nucleic Acid Data: One dalton is 1.67 x 10-24grams, so the human genome weighs 3.59 x 10-12 grams (10-12 grams is also known as a picogram). The human genome is 3.3 x 109 bp in length. If all the DNA in a single human cell was placed end to end it would be six feet long.
How much is the length of DNA?
This allows the 3 billion base pairs in each cell to fit into a space just 6 microns across. If you stretched the DNA in one cell all the way out, it would be about 2m long and all the DNA in all your cells put together would be about twice the diameter of the Solar System.
How much does 1 kb of DNA weigh?
Protein/DNA Conversions
| 1 kb DNA | → | 333 amino acids |
|---|---|---|
| 1.35 kb DNA | → | 50 kDa protein |
| 2.7 kb DNA | → | 100 kDa protein |
| average MW of an amino acid | ≈ | 110 daltons |
| Dalton (Da) is an alternate name for the atomic mass unit, and kilodalton (kDa) is 1,000 daltons. Thus a protein with a mass of 64 kDa has a molecular weight of 64,000 grams per mole |
What is the length of DNA with 23 base pairs?
The haploid human genome (23 chromosomes) is estimated to be about 3.2 billion bases long and to contain 20,000–25,000 distinct protein-coding genes.
How long is DNA uncoiled?
6. That’s how many feet long the DNA from one of your cells would be if you uncoiled each strand and placed them end to end. Do this for all your DNA, and the resulting strand would be 67 billion miles long—the same as about 150,000 round trips to the Moon.
How much does 1kb of DNA weigh?
How much longer is DNA than it is wide?
This mitochondrial DNA is more like bacterial DNA—a single long, circular piece of DNA made up of two strands of DNA. A DNA strand is a long, thin molecule—averaging only about two nanometers (or two billionths of a meter) in width. That is so thin, that a human hair is about 40,000 times as wide.
What is the length of a strand of DNA?
Length of a Human DNA Molecule
| Bibliographic Entry | Result (w/surrounding text) | Standardized Result |
|---|---|---|
| McGraw Hill Encyclopedia of Science and Technology. New York: McGraw Hill, 1997. | “If stretched out, would form very thin thread, about 6 feet (2 meters) long.” | 2.0 m |