Flashcards in 3.3 DNA Structure Deck (11)
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1
Outline DNA nucleotide structure
A DNA nucleotide is made up of a phosphate group, a deoxyribose sugar, and a nitrogenous base (can be one of four different bases).
2
State the names of the four bases of DNA
Adenine, Guanine, Thymine, Cytosine.
3
State the two purines
Adenine and Guanine
4
State the two pyrimidines
Thymine and Cytosine
5
Outline how DNA nucleotides are linked together into a single strand.
DNA nucleotides are linked together by a covalent bond between the deoxyribose sugar of one nucleotide, and the phosphate group of another.
6
Outline the structure of a double helix
Two anti-parallel polynucleotide chains, held together by hydrogen bonds between the base pairs.
7
State Adenine's base pair
Thymine.
8
State Thymine's base pair
Adenine.
9
State Guanine's base pair
Cytosine.
10
State Cytosine's base pair
Guanine.
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