2.3 Nucleotides and Nucleic Acids Flashcards
1
Q
What pentose sugar is found in DNA?
A
Deoxyribose
2
Q
What pentose sugar is found in RNA?
A
RIbose
3
Q
What makes up a nucleotide?
A
Nitrogenous base - Adenine, Guanine, Thyamine, Uracil, Cytosine
Phosphate Group
Pentose sugar - Ribose, Deoxyribose
4
Q
Which Nitrogenous bases are Pyramidines and Purines?
A
Pyramidines - Cytosine, Uracil, Thyamine
Purine - Adenine, Guanine
5
Q
How do Nucleotides become Polynucleotides?
A
Phosphodiester bonds form between Phosphate group via Condensation reaction
6
Q
What shape is a DNA molecule?
A
Double helix
7
Q
What forms between two polynucleotide chains to form a DNA molecule?
A
3 Hydrogen bonds between Guanine and Cytosine
2 Hydrogen bonds between Adenine and Thyamine or Uracil
8
Q
What shape is an RNA molecule?
A
A polynucleotide chain
9
Q
A
