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DNA molecules have a consistant width of about 2.5 nanometers (a nanometer is one billionth of a meter; human hair has a thickness of roughly 20,000 nm to 180,000 nm), but the length of DNA molecules varies greatly. Scientists usually describe the length of DNA using a unit called kb or kbp. One kb is 1000 base pairs, the base pair being the basic repeating nucleotide unit of the DNA chain. Each base pair has a length of 0.33 nm. Plasmid DNA might have a length of 1-200 kb, or 0.33 nm to 66 nm. Bacterial chromosomal DNA length would be perhaps 3800 kb, or 1300 nm (1.3 microns). The length of human chromosome number 1 DNA is 200,000 kb, or 67,000 nm (67 microns). Of course, within the cell, DNA is coiled into a ball much smaller than its length.
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What makes up the sides of the ladder of a DNA molecule?
The sides of the DNA ladder are alternating deoxyribose (sugar) molecules and phosphate molecules. The DNA bases attach to the sugar molecules.
At the end of s phase each chromosome has how many coiled dna molecules?
2 coiled DNA molecules.
Which of the nucleotides occurs in DNA molecules but not in RNA molecules?
Thymine
What determines the distance of the DNA fragments?
By the size of the DNA molecule. longer DNA molecules move slower, and shorter DNA molecules move faster!
What makes up the side of the ladder of a DNA molecule?
The sides of the DNA ladder are alternating deoxyribose (sugar) molecules and phosphate molecules.
What are the smaller units that DNA are made of?
Molecules. DNA is a big molecule made by smaller molecules. http://en.wikipedia.org/wiki/DNA
What kind of molecules are transcripts?
DNA Molecules
What is the main difference between DNA helicases and DNA molecules?
DNA helicases are proteins, while DNA molecules are nucleotides.
How does DNA molecules differ from daughter DNA molecules?
Daughter moloqules are newer than DNA moloqules
DNA replications begins in areas of DNA molecules called what?
DNA replication begins in areas of DNA molecules are called origins of replication.
What molecules are found in chromosomes?
DNA molecules.
What makes of the sides of the ladder of a DNA molecule?
The sides of the DNA ladder are alternating deoxyribose (sugar) molecules and phosphate molecules. The DNA bases attach to the sugar molecules.
Are replicators DNA or RNA?
DNA are replicator molecules. DNA molecules are able to male copies of themselves in a process called DNA replication. RNA molecules however, are synthesized using a DNA template through a process called transcription
What makes up the sides of the ladder of a DNA molecule?
The sides of the DNA ladder are alternating deoxyribose (sugar) molecules and phosphate molecules. The DNA bases attach to the sugar molecules.
What is The number of DNA molecules present in a duplicated chromosome is?
2 DNA molecules College Biology Chapter 9
How are 2 double stranded DNA molecules created?
Two double stranded DNA molecules are created by the process of DNA replication.
What is the molecules that make the upright of a DNA?
The sides (uprights) of the DNA molecule are composed of alternating deoxyribose sugar molecules and phosphate molecules.
