DNA basics
This carries all genetic information in living things.
DNA
Nucleotide has how many main parts?
Three
What are the 4 nitrogen bases.
Adenine, Thymine, Cytosine, Guanine.
The DNA backbone is made of alternating sugar and this.
What is phosphate.
DNA bases are held together by this type of bond.
What is DNA scientific name?
Deoxyribonucleic acid
This part of a nucleotide is a 5 carbon sugar.
deoxyribose.
This base pairs with adenine.
Thymine
This bond links sugars and phosphates together.
What is a covalent bond.
How many hydrogen bonds hold together A and T.
Two
DNA is shaped how?
Double helix
Negatively charged group helps form the DNA backbone.
Phosphate group.
This base pairs with cytosine.
What is guanine.
The backbone runs along the outside of the DNA molecule, while these are inside.
Nitrogen bases.
How many hydrogen bonds hold together C and G
Three
Where is DNA found in a eukaryotic cell
Nucleus
Nucleotide part varies and contains genetic information.
Nitrogenous base.
These two bases form three hydrogen bonds.
Cytosine and guanine.
Orientation of DNA strands.
Anti parallel.
This rule explains why A pairs with T and C pairs with G
Chargaffs rule.
DNA is made of what repeating units?
What are the three parts of a nucleotide.
phosphate group, deoxyribose sugar and nitrogenous base.
These bases are classifiedpurines.
What are adenine and guanine.
The backbone is often called this.
Sugar phosphate backbone.
Weak bonds between bases allow DNA to do this during replication.
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